Relation Puzzle : A is the father of C but C is not his son

Who is the grandmother of D?
Riddle Question

A is the father of C.

But C is not his son.

E is the daughter of C.

F is the spouse of A.

B is the brother of C.

D is the son of B.

G is the spouse of B.

H is the father of G.

Who is the grandmother of D ?

Who is the grandmother of D?
Solve this math problem to see answer.
Riddle Answer

Correct Answer : F

Here, D is the son of B, B is the brother of C and A is the father of C.

This means that B is the father of D and A is the father of B.

So, A is the grandfather of D.

Now, F is the spouse of A.

Therefore, F is the grandmother of D.

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