23^2
35^2
25^3
25^2
13, 40, 122, 369, ?
14, 23, 32?
14, 28, 20, 40, 32, 64, ... What number should come next?
15/20 ÷ 4/5 x 2/3 x 8/5 = ?
17, 17, 34, 20, 20, 31, 23, ... choose which pair of numbers comes next?
19, 2, 38, 3, 114, 4, ? . Which term should replace the question mark in this series ?
2 : 0 :: 4 : ?
2, 1, 1/2, 1/4, . . . . . . What number should come next?
2, 15, 41, 80, ? . Complete the series.
2, 2, 4, 6, ?, 10, 8, 14, 10
