In the series 2, 6, 18, 54, ...., what will be the 8th term ?

40, 40, 31, 31, 22, 22, 13, ... choose which pair of numbers comes next?

15, __, 27, 27, 39, 39. What number should fill the blank?

Find the missing term :- 240, ?, 120, 40, 10, 2

2, 3, 4, 5, 6, 4, 8, ... choose which pair of numbers comes next?

Find the missing number: 11<sup>1</sup>/<sub>9</sub>, 12<sup>1</sup>/<sub>2&l…

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

Find the missing term: 2, 9, 28, ?, 126, 126, 217, 344

What will come at the place of question mark?<br> 4, 7, 12, 19, 28, ?