P is the uncle of Q. R is the sister of P. How is R related to Q?

A. AUNT

M is the daughter of N. O is the son of N. How is O related to M?

A. BROTHER

If A is the brother of B, and B is the sister of C, what is the relationship of A to C?

A. BROTHER

X is the father of Y. Y is married to Z. Z has a brother W. How is W related to X?

B. SON-IN-LAW

If A is the brother of B and C is the sister of B, what is C to A?

A. SISTER