A + B means A is the father of B ;
A - B means A is the wife of B ;
A x B means A is the brother of B ;
A ÷ B means A is the daughter of B.

If P - R + Q, which of the following statements is true ?

A. P IS THE MOTHER OF Q

If A + B means A is the mother of B ;
A / B means A is the brother of B ;
A x B means A is the son of B  and
A - B means A is the daughter of B,
which of the following means C is the niece of D ?

C. C - P / D

Rajan is the brother of Sachin and Manick is the father of Rajan. Jagat is the brother of Priya and Priya is the daughter of Sachin.
Who is the uncle of Jagat ?

A. RAJAN

Introducing a man to her husband, a woman said, "his brother's father is the only son of my grandfather."
How is the woman related to his man ?

C. SISTER

Salesman, Engineer and Accountant. There are two married couples in the family. D, the Salesman is married to the Lady Teacher. The Doctor is married to the Lawyer. F, the Accountant is the son of B and brother of E. C, the Lawyer is the daughter-in-law of A. E is the unmarried Engineer. A is the grandmother of F. What is the profession of A ?

B. TEACHER