Identify the missing letter in the pattern: M, N, O, ?, Q.

A. P

What is the missing number in the sequence: 2, 5, 10, ?, 26?

C. 21

Find the missing character in the pattern: X, Y, Z, ?, B.

A. A

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

A. D

Identify the missing letter in the pattern: X, Y, ?, A, B.

A. Z