Study the given information carefully to answer the given questions.  Seven people P, Q, R, S, T, U and V are related to each other in some or the other way. Each person is of a different age, but not necessarily in the same order. (Note: It is assumed that the husband is older than the wife.)  T is older than V but younger than U. P is the mother of Q. R is the sister-in-law of P. R is unmarried. T is the daughter-in-law of S. S is the eldest member of the family. U is the father of only R and V. U does not have any sibling. V does not have any son. R is older than V. The third eldest member of the family is 54 years old. The youngest member of the family is 4 years old.