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

B. BROTHER

If G is the sister of H and H is the father of I, what is G's relationship to I?

A. AUNT

If J is the son of K and K is the daughter of L, what is J's relationship to L?

A. GRANDSON

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

C. C IS A'S SON

If X * Y means X is the daughter of Y, X + Y means X is the son of Y, and X - Y means X is the uncle of Y, what is the relationship of Z if X * Y + Z?

B. Z IS X'S SON