In the series 2, 4, 8, 16, what is the next number?

C. 32

Which of the following does not belong in the series: 3, 6, 9, 12, 15, 18?

D. 14

If the pattern is 1, 1, 2, 3, 5, what is the next number?

C. 8

In the sequence X, Y, Z, A, B, what comes next?

A. C

Find the next term in the series: 3, 6, 11, 18, ?

A. 25