Identify the pattern and find the missing number: 2, 4, 8, 16, ?

C. 32

Identify the pattern: 1, 1, 2, 3, 5, 8, ?

D. 13

Which letter completes the sequence: B, D, F, H, ?

A. J

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

A. V

If the pattern is 5, 10, 20, 40, what is the next number?

C. 80