58, 52, 46, 40, 34, ... What number should come next?
   
                                                                                                            58, 52, 46, 40, 34, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    3, 8, 13, 18, 23, 28, 33, ... choose which pair of numbers comes next?
   
                                                                                                            3, 8, 13, 18, 23, 28, 33, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    4, 8, 10, 14, 16, 20, ?
   
                                                                                                            4, 8, 10, 14, 16, 20, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    J14, L16, __, P20, R22. What number should fill the blank?
   
                                                                                                            J14, L16, __, P20, R22. What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    4, 7, 26, 10, 13, 20, 16, ... choose which pair of numbers comes next?
   
                                                                                                            4, 7, 26, 10, 13, 20, 16, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    7, 10, 8, 11, 9, 12, ... What number should come next?
   
                                                                                                            7, 10, 8, 11, 9, 12, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    4, 7, 25, 10, __, 20, 16, 19. What number should fill the blank?
   
                                                                                                            4, 7, 25, 10, __, 20, 16, 19. What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    14, 28, 20, 40, 32, 64, ... What number should come next?
   
                                                                                                            14, 28, 20, 40, 32, 64, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    17, 17, 34, 20, 20, 31, 23, ... choose which pair of numbers comes next?
   
                                                                                                            17, 17, 34, 20, 20, 31, 23, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    4, 7, 12, 19, 28, ?
   
                                                                                                            4, 7, 12, 19, 28, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    32, 29, 26, 23, 20, 17, 14, ... choose which pair of numbers comes next?
   
                                                                                                            32, 29, 26, 23, 20, 17, 14, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    20, 20, 17, 17, 14, 14, 11, ... choose which pair of numbers comes next?
   
                                                                                                            20, 20, 17, 17, 14, 14, 11, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    XXIV, XX, __, XII, VIII. What number should fill the blank?
   
                                                                                                            XXIV, XX, __, XII, VIII. What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    31, 29, 24, 22, 17, ... What number should come next?
   
                                                                                                            31, 29, 24, 22, 17, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    V, VIII, XI, XIV, __, XX. What number should fill the blank?
   
                                                                                                            V, VIII, XI, XIV, __, XX. What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    32, 31, 32, 29, 32, 27, 32, ... choose which pair of numbers comes next?
   
                                                                                                            32, 31, 32, 29, 32, 27, 32, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    75, 65, 85, 55, 45, 85, 35, ... choose which pair of numbers comes next?
   
                                                                                                            75, 65, 85, 55, 45, 85, 35, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    13, 29, 15, 26, 17, 23, 19, ... choose which pair of numbers comes next?
   
                                                                                                            13, 29, 15, 26, 17, 23, 19, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    Sunday, Monday, Wednesday, Saturday, Wednesday, Monday, .....
   
                                                                                                            Sunday, Monday, Wednesday, Saturday, Wednesday, Monday, .....
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    664, 332, 340, 170, ____, 89.  What number should fill the blank?
   
                                                                                                            664, 332, 340, 170, ____, 89.  What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    2, 4, 6, 8, 10, ... What number should come next?
   
                                                                                                            2, 4, 6, 8, 10, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    165, 195, 255, 285, 345, ?
   
                                                                                                            165, 195, 255, 285, 345, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    6, 10, 14, 18, 22, 26, 30, ... choose which pair of numbers comes next?
   
                                                                                                            6, 10, 14, 18, 22, 26, 30, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    70, 71, 76, __, 81, 86, 70, 91. What number should fill the blank?
   
                                                                                                            70, 71, 76, __, 81, 86, 70, 91. What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    6, 13, 28, 59, ?, 249.
   
                                                                                                            6, 13, 28, 59, ?, 249.
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    4, 8, 22, 12, 16, 22, 20, 24, ... choose which pair of numbers comes next?
   
                                                                                                            4, 8, 22, 12, 16, 22, 20, 24, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    2, 3, 4, 5, 6, 4, 8, ... choose which pair of numbers comes next?
   
                                                                                                            2, 3, 4, 5, 6, 4, 8, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    84, 78, 72, 66, 60, 54, 48, ... choose which pair of numbers comes next?
   
                                                                                                            84, 78, 72, 66, 60, 54, 48, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    9, 27, 31, 155, 161, 1127, ?
   
                                                                                                            9, 27, 31, 155, 161, 1127, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    2, 1, (1/2), (1/4), ... What number should come next?
   
                                                                                                            2, 1, (1/2), (1/4), ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    6, 24, 60,120, 210, ?
   
                                                                                                            6, 24, 60,120, 210, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    34, 30, 26, 22, 18, 14, 10, ... choose which pair of numbers comes next?
   
                                                                                                            34, 30, 26, 22, 18, 14, 10, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    34, 45, 56, 67.......
   
                                                                                                            34, 45, 56, 67.......
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    11, 16, 21, 26, 31, 36, 41, ... choose which pair of numbers comes next?
   
                                                                                                            11, 16, 21, 26, 31, 36, 41, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    8, 22, 64, 190, 568, ?
   
                                                                                                            8, 22, 64, 190, 568, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    3, 5, 35, 10, 12, 35, 17, ... choose which pair of numbers comes next?
   
                                                                                                            3, 5, 35, 10, 12, 35, 17, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    9, 11, 33, 13, 15, 33, 17, ... choose which pair of numbers comes next?
   
                                                                                                            9, 11, 33, 13, 15, 33, 17, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    (1/9), (1/3), 1, ____ , 9. What number should fill the blank?
   
                                                                                                            (1/9), (1/3), 1, ____ , 9. What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    9, 16, 23, 30, 37, 44, 51, ... choose which pair of numbers comes next?
   
                                                                                                            9, 16, 23, 30, 37, 44, 51, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    1, 9, 25, 49, ?, 121. What will come at the place of question mark ?
   
                                                                                                            1, 9, 25, 49, ?, 121. What will come at the place of question mark ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    16, 26, 56, 36, 46, 68, 56, ... choose which pair of numbers comes next?
   
                                                                                                            16, 26, 56, 36, 46, 68, 56, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    72, 76, 73, 77, 74, __, 75. What number should fill the blank?
   
                                                                                                            72, 76, 73, 77, 74, __, 75. What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    36, 34, 30, 28, 24, ... What number should come next?
   
                                                                                                            36, 34, 30, 28, 24, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    0.15, 0.3, ____, 1.2, 2.4. What number should fill the blank?
   
                                                                                                            0.15, 0.3, ____, 1.2, 2.4. What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    8, 11, 21, 15, 18, 21, 22, ... choose which pair of numbers comes next?
   
                                                                                                            8, 11, 21, 15, 18, 21, 22, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    6, 11, 21, 36, 56, ?
   
                                                                                                            6, 11, 21, 36, 56, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    80, 10, 70, 15, 60, ... What number should come next?
   
                                                                                                            80, 10, 70, 15, 60, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    5760,2880,960, 240, 48, ?
   
                                                                                                            5760,2880,960, 240, 48, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    2, 6, 18, 54, ... What number should come next?
   
                                                                                                            2, 6, 18, 54, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    53, 53, 40, 40, 27, 27, ... What number should come next?
   
                                                                                                            53, 53, 40, 40, 27, 27, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    17, 32, 19, 29, 21, 26, 23, ... choose which pair of numbers comes next?
   
                                                                                                            17, 32, 19, 29, 21, 26, 23, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    21, 25, 18, 29, 33, 18, ... choose which pair of numbers comes next?
   
                                                                                                            21, 25, 18, 29, 33, 18, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    2, 8, 14, 20, 26, 32, 38, ... choose which pair of numbers comes next?
   
                                                                                                            2, 8, 14, 20, 26, 32, 38, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    21, 9, 21, 11, 21, 13, 21, ... What number should come next?
   
                                                                                                            21, 9, 21, 11, 21, 13, 21, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    8, 6, 9, 23, 87 , ... What number should come next?
   
                                                                                                            8, 6, 9, 23, 87 , ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    8, 43, 11, 41, __, 39, 17. What number should fill in the blank?
   
                                                                                                            8, 43, 11, 41, __, 39, 17. What number should fill in the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    113, 225, 449, ? , 1793
   
                                                                                                            113, 225, 449, ? , 1793
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    2, 44, 4, 41, 6, 38, 8, ... choose which pair of numbers comes next?
   
                                                                                                            2, 44, 4, 41, 6, 38, 8, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    7, 26, 63, 124, 215, 342, ?
   
                                                                                                            7, 26, 63, 124, 215, 342, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    Which of the following will come in place of the question mark (?) in the following sequence?
PRODUCTIVITY, RODUCTIVIT, ODUCTIVI, ?
   
                                                                                                            Which of the following will come in place of the question mark (?) in the following sequence?
PRODUCTIVITY, RODUCTIVIT, ODUCTIVI, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    In the following number series a wrong number is given. Find out the wrong number.
1, 3, 10, 21, 64, 129, 356, 777
   
                                                                                                            In the following number series a wrong number is given. Find out the wrong number.
1, 3, 10, 21, 64, 129, 356, 777
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    28, 25, 5, 21, 18, 5, 14, ... choose which pair of numbers comes next?
   
                                                                                                            28, 25, 5, 21, 18, 5, 14, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    2, 7, 27, 107, 427, ?
   
                                                                                                            2, 7, 27, 107, 427, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    9, 17, 33, 65, ?
   
                                                                                                            9, 17, 33, 65, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    3, 4, 7, 8, 11, 12, ... What number should come next?
   
                                                                                                            3, 4, 7, 8, 11, 12, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    10, 34, 12, 31, 14, 28, 16, ... choose which pair of numbers comes next?
   
                                                                                                            10, 34, 12, 31, 14, 28, 16, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    5690, 5121, 4552, 3983, 3414, 2845, ?
   
                                                                                                            5690, 5121, 4552, 3983, 3414, 2845, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    1, 10, 7, 20, 13, 30, 19, ... choose which pair of numbers comes next?
   
                                                                                                            1, 10, 7, 20, 13, 30, 19, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    In the following number series a wrong number is given. Find out the wrong number.
150, 450, 750, 1060,1350,1650,1950
   
                                                                                                            In the following number series a wrong number is given. Find out the wrong number.
150, 450, 750, 1060,1350,1650,1950
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    42, 40, 38, 35, 33, 31, 28, ... choose which pair of numbers comes next?
   
                                                                                                            42, 40, 38, 35, 33, 31, 28, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    201, 202, 204, 207, ... What number should come next?
   
                                                                                                            201, 202, 204, 207, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    7, 11, 19, 35, 67, ?
   
                                                                                                            7, 11, 19, 35, 67, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    1.5, 2.3, 3.1, 3.9, ... What number should come next?
   
                                                                                                            1.5, 2.3, 3.1, 3.9, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    3, 8, 10, 15, 17, 22, 24, ... choose which pair of numbers comes next?
   
                                                                                                            3, 8, 10, 15, 17, 22, 24, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    6, 11, 31, 121, 601, ?
   
                                                                                                            6, 11, 31, 121, 601, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    9, 12, 11, 14, 13, 16, 15, ... choose which pair of numbers comes next?
   
                                                                                                            9, 12, 11, 14, 13, 16, 15, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    10, 20, 25, 35, 40, 50, 55, ... choose which pair of numbers comes next?
   
                                                                                                            10, 20, 25, 35, 40, 50, 55, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    6, 20, 8, 14, 10, 8, 12, ... choose which pair of numbers comes next?
   
                                                                                                            6, 20, 8, 14, 10, 8, 12, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    U32, V29, __, X23, Y20. What number should fill the blank?
   
                                                                                                            U32, V29, __, X23, Y20. What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    11, 14, 14, 17, 17, 20, 20, ... choose which pair of numbers comes next?
   
                                                                                                            11, 14, 14, 17, 17, 20, 20, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    44, 41, 38, 35, 32, 29, 26, ... choose which pair of numbers comes next?
   
                                                                                                            44, 41, 38, 35, 32, 29, 26, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    36, 31, 29, 24, 22, 17, 15, ... choose which pair of numbers comes next?
   
                                                                                                            36, 31, 29, 24, 22, 17, 15, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    83, 73, 93, 63, __, 93, 43. What number should fill the blank?
   
                                                                                                            83, 73, 93, 63, __, 93, 43. What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    61, 57, 50, 61, 43, 36, 61, ... choose which pair of numbers comes next?
   
                                                                                                            61, 57, 50, 61, 43, 36, 61, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    17, 14, 14, 11, 11, 8, 8, ... choose which pair of numbers comes next?
   
                                                                                                            17, 14, 14, 11, 11, 8, 8, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    7, 9, 66, 12, 14, 66, 17, ... choose which pair of numbers comes next?
   
                                                                                                            7, 9, 66, 12, 14, 66, 17, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    3, 7, 23, 95, ?
   
                                                                                                            3, 7, 23, 95, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    10, 100, 200, 310, ?
   
                                                                                                            10, 100, 200, 310, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    14, 14, 26, 26, 38, 38, 50, ... choose which pair of numbers comes next?
   
                                                                                                            14, 14, 26, 26, 38, 38, 50, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    40, 40, 31, 31, 22, 22, 13, ... choose which pair of numbers comes next?
   
                                                                                                            40, 40, 31, 31, 22, 22, 13, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    8, 28, 116, 584, ?
   
                                                                                                            8, 28, 116, 584, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    8, 12, 9, 13, 10, 14, 11, ... choose which pair of numbers comes next?
   
                                                                                                            8, 12, 9, 13, 10, 14, 11, ... choose which pair of numbers comes next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    2, 3, 6, 15, ?, 123
   
                                                                                                            2, 3, 6, 15, ?, 123
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    F2, __, D8, C16, B32 What number should fill the blank?
   
                                                                                                            F2, __, D8, C16, B32 What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    544, 509, 474, 439, ... What number should come next?
   
                                                                                                            544, 509, 474, 439, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    3, 2, 7, 6, 11, ?
   
                                                                                                            3, 2, 7, 6, 11, ?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    22, 21, 23, 22, 24, 23, ... What number should come next?
   
                                                                                                            22, 21, 23, 22, 24, 23, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    15, __, 27, 27, 39, 39. What number should fill the blank?
   
                                                                                                            15, __, 27, 27, 39, 39. What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    5.2, 4.8, 4.4, 4, ... What number should come next?
   
                                                                                                            5.2, 4.8, 4.4, 4, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    VI, 10, V, 11, __, 12, III. What number should fill the blank?
   
                                                                                                            VI, 10, V, 11, __, 12, III. What number should fill the blank?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    8, 22, 8, 28, 8, ... What number should come next?
   
                                                                                                            8, 22, 8, 28, 8, ... What number should come next?
   
                                                                      
                                    
                                    
                                        
                                        
                                    
                                 
                                
                                    
								
                                
                             
                            
                            
                            
                            
                            
                                
                                    2816, ? , 176, 44, 11.
   
                                                                                                            2816, ? , 176, 44, 11.