Identify the missing character in the series 1, 4, 9, ?, 25.

A. 16

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

A. C

If the pattern is 1, 2, 4, ?, 16, what number should replace the question mark?

B. 8

Pencil is to Write as Brush is to ?

A. PAINT

If the pattern is A1, B2, C3, ?, E5, what should replace the question mark?

A. D4