A is the brother of B. C is the sister of A. How is C related to B?

A. SISTER

If X + Y means X is the uncle of Y, X - Y means X is the aunt of Y, and X × Y means X is the cousin of Y, what is the relationship of Z to W if Z - W and W + Z are true?

A. Z IS W'S AUNT

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

C. UNCLE

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

A. BROTHER

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

A. AUNT