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

B. SISTER

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

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

A. SISTER

X is the father of Y. Y has a sister Z. W is the son of Z. How is W related to X?

A. GRANDSON

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

A. NIECE