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

C. 32

In the sequence: Z, Y, X, W, ?, what comes next?

A. V

Identify the next letter in the sequence: Z, X, V, T.

C. U

In the series: A, E, I, M, ?, what is the next letter?

B. O

Identify the pattern: 3, 6, 11, 18, ?

A. 27