If X ÷ Y means X is the mother of Y, X * Y means X is the father of Y, and X - Y means X is the sister of Y, what is the relationship of Z if X ÷ Z * Y means X is the mother of Z and Z is the father of Y?
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 between C and D if C + D × E?
If M × N means M is the daughter of N, M + N means M is the son of N, and M - N means M is the wife of N, what is the relationship between O and N if O - M + N?
In a coded relation, if P ÷ Q means P is the mother of Q, P - Q means P is the daughter of Q, and P + Q means P is the father of Q, what is the relationship of R if P ÷ Q + R?
If X * Y means X is the sister of Y, X + Y means X is the father of Y, and X - Y means X is the mother of Y, what is the relationship of Z if X * Y - Z?