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?
If X - Y means X is the brother of Y, X + Z means X is the sister of Z, and Y × Z means Y is the father of Z, what is the relationship of X to Z in X - Y + Z?
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?
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?