Pointing to a photograph Mohan said, "his mother's only child is my father's only son ". Whose photograph is Mohan pointing to?

U is the father of M. V is the Wife of K. D is the mother of K's only brother M. How is U related to D?

$A\$B$ means $A$ is mother of $B$. $A\ne B$ means $A$ is father of $B$. $A@B$ means $A$ is husband of $B$. $A\%B$ means $A$ is daughter of $B$. Which of the following expressions indicates $H$ is the brother of $N$?

Among her children, Ganga's favourites are Ram and Rekha. Rekha is the mother of Sharat, who is loved most by his uncle Mithun. The head of the family is Ram Lal, who is succeeded by his sons Gopal and Mohan. Gopal and Ganga have been married for $35$ years and have $3$ children. What is the relation between Mithun and Mohan?

$A\$B$ means $A$ is mother of $B$. $A\ne B$ means $A$ is father of $B$. $A@B$ means $A$ is husband of $B$. $A\%B$ means $A$ is daughter of $B$. Which of the following expressions indicates that $\text{'}R$ is the sister of $H\text{'}$?