Showing the man receiving the prize,Saroj said,"He is the brother of my uncle's daughter." Who is the man to Saroj?

$E$ is the son of $A$. $D$ is the son of $B$. $E$ is married to $C$. $C$ is $B$'s daughter. How is $D$ related to $E$?

There is a family of six persons $A, B, C, D, E$ and $F$. They are Lawyer,Doctor,Teacher,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 $A$?

Pointing to a photograph,a man said,"$I$ have no brother or sister,but that man's father is my father's son." Whose photograph was it?

Pointing to a lady,a man said,'The son of her only brother is the brother of my wife'. How is the lady related to the man?

Pointing to a lady,a girl said,'She is the daughter-in-law of the grandmother of my father's only son'. How is the lady related to the girl?