Find the missing letter in the series: b, d, f, h, ?

A. J

Identify the missing letter in the series: Z, X, V, T, ?

D. P

What is the next letter in the series: M, N, O, P, ?

A. Q

What is the missing number in the series: 2, 4, 8, 16, ?, 64?

A. 32

What letter comes next in the series: d, g, j, m, ?

A. P