$P \times Q$ means $P$ is the sister of $Q$; $P + Q$ means $P$ is the father of $Q$; $P - Q$ means $P$ is the mother of $Q$. Which of the following means $S$ is the aunt of $T$?

Rita told Mani,"The girl $I$ met yesterday at the beach was the youngest daughter of the brother-in-law of my friend's mother." How is the girl related to Rita's friend?

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 $B$.
Which of the following means $F$ is paternal grandfather of $H$?

Pointing to a photograph,Nikita said,'She is the only granddaughter of my grandmother's daughter'. How is the girl in the photograph related to Nikita?

If $A + B$ means $A$ is the brother of $B$; $A \cdot B$ means $A$ is the father of $B$ and $A \times B$ means $A$ is the sister of $B$,which of the following means $M$ is the uncle of $P$?

$A$ family consists of six members $P, Q, R, S, T$ and $U$. There are two married couples. $Q$ is a doctor and the father of $T$. $U$ is the grandfather of $R$ and is a contractor. $S$ is the grandmother of $T$ and is a housewife. There is one doctor,one contractor,one nurse,one housewife,and two students in the family. Who is the sister of $T$?