In decipher jumbled up description type of questions, a round-about description is given in the form of certain small relationships and direct relationship between the persons concerned is to be deciphered.

Pointing to a man, a woman said, "His mother is the only daughter of my mother."
How is the woman related to the man ?

A. Mother
B. Daughter
C. Sister
D. Grandmother
E. None of these
Answer: A . Mother


Only daughter of my mother -- Myself.
So, the woman is man's mother.