In a coded relationship, if P × Q means P is the mother of Q, P ÷ Q means P is the father of Q, and P + Q means P is the daughter of Q, what is the relationship of R if P × R ÷ Q means P is the mother of R and R is the father of Q?

B. R IS Q'S SON

If X - Y means X is the sister of Y, X + Y means X is the brother of Y, and X × Y means X is the daughter of Y, what is the relationship of Z if X - Z + Y means X is the sister of Z and Z is the brother of Y?

A. Z IS X'S BROTHER

If A + B means A is the sister of B, B - C means B is the brother of C, and C * D means C is the mother of D, what is the relationship of A to D?

A. AUNT

If X ÷ Y means X is the father of Y, Y * Z means Y is the daughter of Z, and Z + W means Z is the brother of W, what is the relationship of X to W?

B. UNCLE

If X is the daughter of Y, and Y is the sister of Z, what is X's relation to Z?

A. NIECE