Find the odd one out in the series: A, D, G, J, K, N

B. K

Find the missing number in the series: 5, 10, 20, 40, ?

A. 80

A, E, I, M, ?

A. O

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