Pointng out to a lady, a girl said, "She is the daughter-in-law of the grandmother of my father's only son."
How is the lady related to  the girl ?

B. MOTHER

Pointing to a man in a photograph, Asha said, "His mother's only daughter is my mother."
How is Asha related to that man ?

D. NIECE

E is the son of A.
D is the son of B.
E is married to C.
C is B's daughter.
How is D related to E ?

D. BROTHER-IN-LAW

A man and his wife have three sons, and every of the sons has a sister. How many are there in the family ?

C. 6

(I).   A, B, C, D, E and F are six members of a family.
(II).  One couple has parents and their children in the family.
(III). A is the son of C and E is the daughter of A.
(IV). D is the daughter of F who is the mother of E. What relationship do D and E bear to each other ?

D. SISTER