What is the next number in the series: 3, 6, 11, 18, ?

B. 24

Identify the missing number in the series: 12, 24, 48, ?, 192.

B. 96

What is the missing number in the series: 2, 4, 8, 16, ?, 64

A. 32

What number should replace the question mark in the series: 1, 1, 2, 3, 5, ?

A. 7

Identify the missing number in the series: 3, 6, 11, 18, ?

A. 25