A + B means A is the daughter of B ;
A - B means A is the husband of B ;
A x B means A is the brother of B.

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

A. R IS THE MOTHER OF P

If Kamal says, "Ravi`s mother is the only daughter of my mother", how is Kamal related to Ravi ?

A. NONE OF THESE

A is the brother of B. B is the brother of C. D is the father of A. Based on these three satatements, which of the following statements cannot be definitely true ?

D. C IS THE BROTHER OF A.

C is A's father's nephew. D is A's cousin but not the brother of C.
How is D related to C ?

B. SISTER

There are six persons A, B, C, D , E and F. C is the sister of F. B is the brother of E's husband. D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group. Who is E's husband ?

C. A