Question : Directions: A is the son of C, but C is not the mother of A. B is A's sister. C and D are a married couple. E is the mother of C. Who is A's mother?

Question : Directions: A is the father of B, B is the daughter of C, D is the brother of B, and N is the sister of C. How is B related to N?

Question : Directions: A and B are a married couple. C and D are brothers. C is the brother of A. How is D related to B?

Question : Directions: K % L means K is the mother of L;
K @ L means K is the brother of L;
K ^ L means K is the son of L;
K # L means K is the wife of L.
If A @ B ^ C # D @ E, how is E related to A?

Question : Directions: P % Q means P is the brother of Q;
P @ Q means P is the daughter of Q;
P + Q means P is the father of Q;
P ? Q means P is the husband of Q.
If A % B @ D + E ? C, then how is A related to C?