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

B. 32

Which of the following does not belong in the series: 3, 6, 9, 12, 15, 18, 20?

D. 20

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

C. 8

In the sequence B, D, F, H, what is the next letter?

A. J

If the pattern is A, C, E, G, what comes next?

A. I