If D is the daughter of E, and E is the mother of F, what is the relationship of D to F?

A. SISTER

If M is the sister of N, and N is the father of O, what is the relationship of M to O?

A. AUNT

H is the uncle of I. J is the sister of I. How is H related to J?

C. UNCLE

O is the grandmother of P. Q is the mother of P. R is the brother of Q. How is R related to O?

A. UNCLE

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 - Z ÷ Y?

A. Z IS Y'S DAUGHTER