If the 1st letter is A and the 26th letter is Z, what is the 10th letter?

A. J

In a series where each term is the previous term multiplied by 2, if the first term is A, what is the fourth term?

C. 16A

If the pattern is defined as adding 3, then subtracting 1 alternately starting from 1, what is the fifth term?

A. 7

In the series 5, 10, 20, 40, what is the next number?

C. 80

In the series 2, 4, 8, 16, what is the next number?

C. 32