In the series A, C, E, G, I, what is the 4th letter?

A. G

How many times does the letter 'E' appear in the series: B, E, A, E, D, E, F, E?

A. 4

If A is to B as C is to D, and A is the first letter of the alphabet, what is D if C is the third letter?

C. E

If the sequence is A, C, E, G, what is the next letter?

B. H

In the pattern 3, 6, 12, 24, what is the next number?

C. 48