In the sequence 2, 4, 8, 16, ?, 64, what is the missing number?

A. 32

In the series X, Y, Z, ?, B, C, what letter should replace the question mark?

A. A

Find the missing character in the series: X, W, V, ?, T.

A. U

Identify the missing letter in the pattern: J, K, L, ?, N.

B. M

What character should replace the question mark in the pattern X, Y, Z, ?, B, C?

A. A