What is the missing term in the series: 12, 24, 48, ?, 192

A. 96

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

A. 32

What is the next number in the series: 7, 14, 28, 56, ?

B. 112

What is the missing term in the series: 1, 1, 2, 3, 5, ?

B. 8

What number should replace the question mark in the series: 2, 4, 8, 16, ?

B. 32