In a pattern of letters: X, Y, ?, Z, A. What is the missing letter?

A. W

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

A. D

Find the missing character in the pattern: 2, 4, 8, ?, 32.

A. 16

In the sequence A, B, C, D, ?, F, G, what character should replace the question mark?

A. E

In a pattern of shapes: Circle, Triangle, Square, Circle, Triangle, ?, Square. What is the missing shape?

B. TRIANGLE