If X + Y means X is the daughter of Y; X - Y means X is the brother of Y; X % Y means X is the father of Y and X x Y means X is the sister of Y. Which of the following means I is the niece of J?

K + Y ? K is the brother of Y

Y x I ? Y is the father of I

Hence, ? K is the uncle of I

and I - Z ? I is the sister of Z

Hence, ? I is the niece of K.

Q $ R ? Q is the father of R

R @ T ? R is the brother of T

Hence, ? Q is the father of T

T * M ? T is the daughter of M

Hence, ? M is the mother of T

Hence, M is the wife of Q.

P % Q ? P is the mother of Q

Q + R ? Q is the father of R

R - T ? R is the brother of T

Hence, ? Q is the father of T

T x K ? T is the daughter of K

Hence, ? Q is the husband of K.

Therefore, P is the mother-in-law of K.

A is the mother of B, B is the brother of C and C is the daughter of D. Hence, D is the father.

A      (Parents)        D
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B - is - Brother - of - C

Father's wife ? mother. Hence, the daughter of the mother means sister and sister's younger brother means brother. Therefore, the boy is the brother of Deepak.

Only the child of my father means 'Abhisek' himself. This means the girl is the daughter od Abhisek. Hence, Abhisek's wife is the mother of the girl.

Brother of person's wife ? brother-in-law of the person. Hence, the son of lady's brother is brother-in-law of the person.

Therefore, the brother of the lady is the father-in-law of the person. Hence, the lady is the sister of the person's father-in-law.

The boy in the photograph is the only son of Reena's grandfather's only son; i.e., the boy is the only son of Reena's father.

Hence, the boy is the brother of Reena or Reena is the sister of the boy.

Daughter of Abhijit's brother ? niece of Abhijit. Thus the granddaughter of the woman is Abhijit's niece.

Hence, the woman is the mother of Abhijit.