Neelam,who is Deepak's daughter,says to Deepika,"Your mother Rekha is the younger sister of my father who is the third child of Ramlal." How is Ramlal related to Deepika?

$P$ is the son of $Q$,while $Q$ and $R$ are sisters. $T$ is the mother of $R$. If $S$ is the son of $T$,which of the following statements is correct?

Pointing to a man in a photograph,a woman said,"His brother's father is the only son of my grandfather." How is the woman related to the man in the photograph?

If $A * B$ means $A$ is the mother of $B$; $A + B$ means $A$ is the brother of $B$; $A \times B$ means $A$ is the son of $B$ and $A - B$ means $A$ is the daughter of $B$,which of the following means $C$ is the niece of $D$?

$A \div B$ means $A$ is the father of $B$,$A - B$ means $A$ is the wife of $B$,$A \times B$ means $A$ is the brother of $B$,$A + B$ means $A$ is the daughter of $B$.
If $P \div R + S + Q$,which of the following is true?

$A$ 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 $P$. How is $Q$ related to $X$?