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

A. 25

What is the next number in the series: 12, 24, 48, 96, ?

A. 192

What is the next letter in the series: A, C, E, G, ?

A. I

Identify the missing letter in the series: Z, X, V, T, ?

B. S

Complete the series: B, D, F, H, ?

A. J