Which letter comes next in the series: Z, Y, X, W, ?

A. V

If the pattern is to skip one letter between each, what is the 4th letter in the sequence starting from B?

A. E

If the sequence is A, C, E, G, what is the next letter?

B. H

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

C. 32

What comes next in the pattern: 1, 1, 2, 3, 5, 8, ?

D. 13