A is B’s brother, C is A’s mother, D is C’s father, E is B’s son. How is D related to A ? 

Introduction a boy, a girl said, "He is the son of the sister of my mother's brother." The girl has no real brother. How is that boy related to that girl?

A is the sister of B. B is the brother of C, C is the son of D. How is D related to A?

‘A # B’ means ‘A is the brother of B’.
 ‘A @ B’ means ‘A is the daughter of B’.
 ‘A & B’ means ‘A is the husband of B’.
 ‘A % B’ means ‘A is the wife of B’.
 If S % D # F @ G & H @ J, then how is F related to J?

Pointing to a girl Vineet said, she is the only daughter of my father's only son. How is Vineet related to that girl?

Pointing to a Boy Sheela said ‘he is the only son of my grand mothers’s only child how is the Boy related to Sheela.

Pointing to Ramesh, Radha said, “His father is the only son of my grandfather”. How is Radha Related to Ramesh?

Pointing towards a lady in a picture, Suresh says, “She is the only daughter-in-law of my paternal grandfather’s wife.” How is the lady related to Suresh?