Find the missing term: 8, 9, 8, 7, 10, 9, 6, 11, 10, ?, 12

8, 11, 21, 15, 18, 21, 22, ... choose which pair of numbers comes next?

Find the missing term: 1, 1, 2, 6, 24, ?, 720

3, 5, 35, 10, 12, 35, 17, ... choose which pair of numbers comes next?

Find out the wrong term: 25, 36, 49, 81, 121, 169, 225

(1/9), (1/3), 1, ____ , 9. What number should fill the blank?

Find the missing term: 2, 7, 27, 107, 427, ?

Find the missing term: 20, 20, 19, 16, 17, 13, 14, 11, ?, ?

11, 14, 14, 17, 17, 20, 20, ... choose which pair of numbers comes next?