Verbal Reasoning

Hema's husband's mother's only daughter could be Hema's husband's sister = sister-in-law.

A and B are parents of C. C and E have children F and G. G is the daughter of C. Therefore, G is the granddaughter of A.

Arun's brother's only child's mother = Arun's sister-in-law (his brother's wife).

Q is N's father. N is M's husband. M is O's mother. P is O's sister. So Q is the grandfather of P.

Kavya's father's father = paternal grandfather. His brother = great-uncle (paternal great-uncle) of Kavya.

X's wife is Y's mother. Z is X's son and Y's brother (since Y is Z's sister). Therefore, X is Y's father.

A is B's father. B is C's mother. C is D's sister (so B is D's mother). D is E's father. A → B → D → E spans three generations, making A the great-grandfather.

Ravi → Mohan → Arjun → Vikram. Priya is Vikram's sister, so same generation as Vikram. Ravi is 4 generations above Vikram/Priya, making Ravi the great-great-grandfather.

Meera's son's wife = Meera's daughter-in-law. The mother of Meera's daughter-in-law = Meera's mother-in-law.

Vikram's father's only son = Vikram himself. His daughter = Vikram's daughter, but the girl in photo is daughter of Vikram's father's only son (Vikram), so she is Vikram's niece if we interpret 'she' as someone else's daughter, or daughter if it's Vikram's own. Given context, it's niece.