If P $ Q means P is the brother of Q; P # Q means P is the mother of Q; P * Q means P is the daughter of Q in A # B $ C * D, who is the father?
Answer: A
A is the mother of B, B is the brother of C and C is the daughter of D. Hence, D is the father.
A (Parents) D | | | | B - is - Brother - of - C