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?

$A$ 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 many children does $P$ have?

$A$ girl introduced a boy as the son of the daughter of the father of her uncle. The boy is the girl's:

$P$ is the brother of $Q$ and $R$. $S$ is $R$'s mother. $T$ is $P$'s father. Which of the following statements cannot be definitely true?

Given that:
$1.$ $A$ is the mother of $B$;
$2.$ $C$ is the son of $A$;
$3.$ $D$ is the brother of $E$;
$4.$ $E$ is the daughter of $B$.
The grandmother of $D$ is:

Lakshmi and Meena are Rohan's wives. Shalini is Meena's step-daughter. How is Lakshmi related to Shalini?