If $X \circ Y$ means $X$ is the wife of $Y$,$X \cdot Y$ means $X$ is the son of $Y$,and $X * Y$ means $X$ is the sister of $Y$,which of the following would mean that $A$ is the daughter of $B$?

If $(i)$ $M$ is brother of $N$; $(ii)$ $B$ is brother of $N$; and $(iii)$ $M$ is brother of $D$,then which of the following statements is definitely true?

These questions are based on the following information. Study it carefully and answer the questions.
$(i)$ $A \times B$ means $A$ is father of $B.$
$(ii)$ $A \div B$ means $A$ is daughter of $B.$
$(iii)$ $A + B$ means $A$ is sister of $B.$
$(iv)$ $A - B$ means $A$ is husband of $B.$
In $F - R + H \div T,$ how is $F$ related to $T?$

Daya has a brother,Anil. Daya is the son of Chandra. Bimal is Chandra's father. In terms of relationship,what is Anil to Bimal?

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 $F$. How is $D$ related to $F$?

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?