In a coded relation, if P × Q means P is the mother of Q, P ÷ Q means P is the son of Q, and P + Q means P is the daughter of Q, what is the relationship of R if P × R ÷ Q?
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?
If M * N means M is the father of N, M + O means M is the brother of O, and O - P means O is the sister of P, what is the relationship of P to N if M * N + O - P means M is the father of N, M is the brother of O, and O is the sister of P?