If X is the daughter of Y, and Y is the sister of Z, what is the relationship of X to Z?

A. NIECE

If A + B means A is the brother of B, and B - C means B is the sister of C, what is the relationship between A and C?

C. COUSIN

If J is the grandmother of K, and K is the son of L, what is the relationship of L to J?

A. DAUGHTER-IN-LAW

If X * Y means X is the mother of Y, and Y + Z means Y is the brother of Z, what is the relationship between X and Z?

A. GRANDMOTHER

D is the daughter of E and F is the son of E. How is F related to D?

A. BROTHER