R is the brother of N. R is the only son of K. S is the only daughter-in-law of K. How is N related to S?

Pointing to a woman in a picture, Taran said, “She is the mother of the father-in-law of my husband”. How is Taran related to that woman?

Pointing to Manju, Gaurav said, “She is the wife of the only son of my father’s father.” How is Manju related to Gaurav?

Pointing to the photo of a man, a woman said, “His brother’s father is the only son of my grandfather.” How is the woman related to the man in the photo?

A is B's sister. C is B's mother. D is C's father. E is D's mother. How is A related to D?

Sushant said, "This girl is the wife of the grandson of my mother." who is Sushant to the girl? 

A is B’s sister. C is B’s mother. D is C’s Father. E is D’s mother. Then how is A related to D?

‘A+B’ means ‘A’ is the brother of B’.‘A-B’ means ‘A’ is the husband of B’.‘A×B’ means ‘A’ is the mother of B’.‘A÷B’ means ‘A is the sister of B’. If P+R÷T-K×O×C, then how is P related to O?