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

B. TRIANGLE

In the pattern 5, 10, 15, ?, 25, what number is missing?

A. 20

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

A. D

What character should replace the question mark in the pattern: 1, 1, 2, 3, ?, 13?

B. 8

Find the missing character in the sequence: X, Y, ?, A, B.

A. Z