P, Q, R, S, T and U are 6 members of a family in which there are two married couples. T, a teacher is married to a doctor who is mother of R and U. Q, the lawyer is married to P. P has one son and one grandson. Of the two married ladies one is a housewife. There is also one student and one male engineer in the family. Which of the following is true about the grand-son of the family?

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 reads a book and find the name of the author familiar. The author 'B' is paternal uncle of C. C is the daughter of A. How is B related to A?

P and Q are brothers R and S are sisters. P's son is R's brother. How is Q related to K?

Six persons are seen together in a group. They are A, B, C, D, E and F. B is the brother of D but D is not brother of B. F is the brother of B. C and A are married together. F is son of C but C is not the mother of F. E is the brother of A. The number of female members in the group is

Ram and Mohan are brothers. Shankar is Mohan's father. Chhaya is Shankar's sister. Priya is Shankar's niece. Shubhra is Chhaya's granddaughter. How is Ram related to Shubhra?

A, B, C, D, E and F are members of a family. B is the son of A but A is not the mother of B. A and C are married couple. F is the brother of A. D is the sister of B. E is the son of C. How many male members are there in the family.