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

B. 16

What character completes the sequence 3, 6, 9, ?, 15?

B. 12

FISH is to SWIM as BIRD is to ?

A. FLY

MOUSE is to CLICK as KEYBOARD is to ?

A. TYPE

Find the missing character in the sequence: 1, 3, 5, ?, 9.

A. 7