A is the brother of B. C is the sister of A. What is the relation of C to B?

A. SISTER

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 + C - B?

A. C IS THE SISTER OF B

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

B. UNCLE

D is the mother of E and F. G is the father of E. How is G related to F?

A. FATHER

G is the son of H, and I is the daughter of H. What is I to G?

A. SISTER