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

A. I

If M is the daughter of N and N is the sister of O, what is M's relation to O?

A. NIECE

What is the 7th letter in the English alphabet?

A. G

In a coded relation, if M + N means M is the brother of N, M - N means M is the sister of N, and M × N means M is the father of N, what is the relationship of O if M × N - O?

A. O IS M'S DAUGHTER

If the pattern is 1, 2, 4, 7, ?, 16, what number should replace the question mark?

B. 11