There are six persons $A, B, C, D$ and $E, F$. $C$ is the sister of $F$. $B$ is the brother of $E$'s husband. $D$ is the father of $A$ and grandfather of $F$. There are two fathers,three brothers,and a mother in the group. How is $F$ related to $E$?

If $P + Q$ means $P$ is the husband of $Q$,$P - Q$ means $P$ is the sister of $Q$,and $P \times Q$ means $P$ is the son of $Q$,which of the following shows $A$ is the daughter of $B$?

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?

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 $B$.
$D$ is brother of $B$. $M$ is brother of $B$. $K$ is father of $M$. $T$ is wife of $K$. How is $B$ related to $T$?

$A$ family consists of six members $P, Q, R, X, Y$ and $Z$. $Q$ is the son of $R$ but $R$ is not the mother of $Q$. $P$ and $R$ are a married couple. $Y$ is the brother of $R$. $X$ is the daughter of $P$. $Z$ is the brother of $P$.
Which is a pair of brothers?

Following questions are based on the information provided below:
$A \times B$ means $A$ is mother of $B$.
$A - B$ means $A$ is brother of $B$.
$A + B$ means $A$ is sister of $B$.
$A \div B$ means $A$ is father of $B$.
How will $M$ is daughter of $N$ be written?