Find the missing term: 3, 10, 101, ?

Find the missing term: 4, 6, 9, 13<sup>1</sup>/<sub>2</sub>, ?

70, 71, 76, __, 81, 86, 70, 91. What number should fill the blank?

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

84, 78, 72, 66, 60, 54, 48, ... choose which pair of numbers comes next?

Find the missing term: 3, 10, 29, 66, 127, ?

2, 6, 18, 54, ... What number should come next?

17, 32, 19, 29, 21, 26, 23, ... choose which pair of numbers comes next?

4, 8, 22, 12, 16, 22, 20, 24, ... choose which pair of numbers comes next?