Barkha and Chandresh are siblings. Manish has two children and is son of Suresh, who is father-in-law of Hansa. Hansa has only one son. Chandresh is not son-in-law of Suresh. How is Barkha related to Suresh?

Introducing a man, a woman said, "His sister's mother has only one son who is the husband of my father's only daughter." How is the woman related to the man?

Pointing to a man in a photograph, a woman said, "His brother's father is the only son of my grandfather." How is the woman related to the man?

Vinod introduces Vishal as the son of the only brother of his father's wife. How is Vinod related to Vishal?

Pointing to a woman, Nilesh said, 'She is the only daughter of my wife's grandfather's only child.' How is the woman related to Nilesh?

If X is the sister of Y, Y is the father of Z and Z is the brother of W, then how is X related to W?