In the sequence 2, 4, 8, ?, 32, what is the missing number?

B. 16

In the sequence 3, 6, 9, ?, 15, what number should replace the question mark?

C. 12

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

C. 21

Cat is to Kitten as Dog is to ?

A. PUPPY

PEN is to WRITE as BRUSH is to ?

A. PAINT