In a coded relation, if P × Q means P is the father of Q, P ÷ Q means P is the daughter of Q, and P + Q means P is the son of Q, what is the relationship of R if P × Q + R?
In a coded relation, if A + B means A is the sister of B, A - B means A is the brother of B, and A × B means A is the mother of B, what is the relationship of C if A × B + C?
In a coded relationship, if A + B means A is the uncle of B, A - B means A is the aunt of B, and A × B means A is the grandfather of B, what is the relationship of C if A + B × C?
If X * Y means X is the son of Y, X + Z means X is the sister of Z, and Y - Z means Y is the mother of Z, what is the relationship of Z to X in the expression X * Y + Z?