If the pattern is M, N, O, ?, Q, R, what character should replace the question mark?

A. P

What character should replace the question mark in the sequence: A, B, C, ?, E?

A. D

In the series: 1, 4, 9, ?, 25, what number should replace the question mark?

A. 16

Identify the missing letter in the pattern: A, C, E, ?, I.

A. G

What is the missing character in the sequence: 2, 4, 8, ?, 32?

A. 16