Question

A is a father of B but B is not a son of A ??whyyy??tell me.☺

Answer 1

because B is daughter of A

Answer 2

$<b>Well it is definitely a really interesting riddle.<b>$

Given,
A is the father of B but B is not the son of B

So,
B is definitely the daughter of A.

Some people may think whole day about this riddle could not find answer but as someone asked me this riddle so I know :)

Thanking You!