Solve these 1 father is ArunThen Arun the of father?

This is a bit of a word puzzle! Here's how to solve it:

* "Father is Arun" means that Arun is the father.

* "Arun the of father?" We need to figure out what word goes in the blank.

The answer is:

* "Arun the *son* of father?"

This makes sense because if Arun is the father, then the person asking the question is likely his son.