Brain Teaser
A is B's sister.
C is B's mother.
D is C's father.
E is D's mother.
Then, how is D related to D?
C is B's Mother
That means C is a Mother to A and B
D is C's Father....
That means C is a daughter to D
How is A related to D?
Answer: A is a granddaughter to D while D is a grandfather to A