If kamal says, '"Ravi’s mother is the only daughter of my mother”, how is the kamal related to ravi?

Pointing to a picture, Andrew said, "He is the only son of the only daughter of the father of my brother." How Andrew is related to the man in the photograph?

P+Q means p is the brother of Q;P-Q means p is the mother of Q and P *q means P is the sister of Q. which of the following means M is the maternal uncle of R?

How is Sanjeev related to radha?
I. Sanjeev is son of radha’s grandfather’s only daughter.
II.Sanjeev has no Siblings.
III.Radha has only one brother.

Suraj said, while pointing towards the boy in the photographer, "He is my son of the one and only son of my mother. So, how is Suraj associated to that boy?

Which of the following relations are true based upon the relations given in the question S ÷ T × V - W + Y’ ?