Introducing Sonia, Aamir says, "She is the wife of only nephew of only brother of my mother." How Sonia is related to Aamir?

Anupam's son-in-law is the brother of the lady who was sitting in the car. Hence, the husband is also the son-in-law of Anupam.

The girl is the daughter of the sister of Sandeep's father. Hence, the girl is the cousin or Sandeep is the cousin of the girl.

The woman is the mother of Shashank's granddaughter. Hence, the woman is the daughter-in-law of Shashank.

The man in the photograph is the son of the only son of Lata's grandfather i.e., the man is the son of Lata's father. Hence, the man is the brother of Lata.

The man is the only son of the mother of the woman. Hence, the man is the maternal uncle of the woman. So, the woman is the niece of the man.

M is the father of N and N is the son of V.

Hence, V is the mother of N.

From (1), P is the brother of V

Therefore, M is the brother-in-law of P because V is the wife of M.

From (2), the daughter of N, is the granddaughter of V. From this we do not get any relation of M to P.

P @ Q ? P is the wife of Q ...(1)

Q $ T ? Q is the brother of T ...(2)

T # U ? T is the daughter of U

Hence, ? Q is the son of U ...(3)

U * W ? U is the father of W.

From (1) and (3), U is the father-in-law of P.

The pattern is - 21, - 19, - 17, - 15,.....

So, missing term = 48 - 13 = 35.

The digits are removed one by one from the beginning and the end in order alternately

so as to obtain the subsequent terms of the series.

Each term in the series is obtained by adding 1 to the square of the preceding term.

So, missing term = (101)² + 1 = 10202.