Find out the wrong term: 2, 3, 4, 4, 6, 8, 9, 12, 16

42, 40, 38, 35, 33, 31, 28, ... choose which pair of numbers comes next?

Find the missing term: 5824, 5242, ?, 4247, 3823

U32, V29, __, X23, Y20. What number should fill the blank?

Find the missing term: 2, 12, 36, 80, 150, ?

Find the missing term: 2, 3, 5, 7, 11, ?, 17

What will come at the place of question mark ?<br>1, 9, 25, 49, ?, 121.

Find the missing term: 1, 1, 4, 8, 9, 27, 16, ?

22, 21, 23, 22, 24, 23, ... What number should come next?