Brothers and Sisters I have None ::

Looking at a portrait of a man, Harsh said, "His mother is the wife of my father's son. Brothers and sisters I have none." At whose portrait was Harsh looking? 

P and Q are brothers. P is the father of S. R is the only son of Q and is married to U. How is U related to S?

F is the Father of S and D. D's Paternal aunt's daughter is E. How is F related to E?

Spandana is the sister of Raju. How is Raju's father's sister related to Spandana?

Introducing a boy Rahul says, "He is the son of the brother of the only daughter of my maternal grandfather". How is the boy related to the Rahul?

Looking at the portrait of a girl, Sheesha, a girl, said, "Her mother is my grandfather's only daughter who has only one daughter and no sons". How is Sheesha related to the girl in the portrait?

Nishi's grandfather is the brother of Om's father. Hemant is the son of Om. How is Hemant related to Nishi?

Introducing a boy, a girl says, "He is the son of the sister of my mother's brother." How is the boy related to the girl?

Mathur's uncle's daughter's brother is Salmi. How is Sonm related to Mather?