A + B means A is the son of B; A - B means A is the wife of B; A x B means A is the brother of B; A ÷ B means A is the mother of B; and A = B means A is the sister of B. What does P = R ÷ Q mean ?
A family consists of six members P, Q, R, X, Y and Z. Q is the son of R but R is not mother of Q. P and R are a married couple. Y is the brother of R. X is the daughter of P. Z is the brother of P.
Who is the father of Q ?
Pointing to a man in a photograph, a woman said, "His brother`s father is the only son of my grandfather.' How is the woman related to the man in the photograph?