If A + B means A is the brother of B, A - B means A is the sister of B, and A × B means A is the father of B, what is the relationship of C if A + C - B × D?
In a coded relation, 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 son of Q, what is the relationship of R if P × R ÷ Q + S?
If X - Y means X is the daughter of Y, X + Z means X is the brother of Z, and Y × Z means Y is the father of Z, what is the relationship of W if X - W + Y × Z?
In a coded relationship, if A + B means A is the uncle of B, A - C means A is the aunt of C, and B × C means B is the child of C, what is the relationship of D if A + D - C × B?