In a family, P is the son of Q, and R is the daughter of Q. If S is the brother of P, what is the relationship of S to R?

A. BROTHER

If P is the mother of Q, and Q is the sister of R, what is the relationship of P to R?

B. MOTHER

In a family, there are four members: A, B, C, and D. A is married to B, and they have two children, C and D. If C is older than D, who is the youngest member of the family?

D. D

If J is the uncle of K, and K is the daughter of L, what is the relationship of J to L?

B. BROTHER-IN-LAW

How many letters are there between 'M' and 'T' in the alphabet?

A. 5