IQ Question

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Answer

My father

Explanation

Here in this question read the following statement again...

Mr. Khan's son is my son's father.

Focus of last three word of above statement "my son's father"
My son's father = myself
Now understand the statement who is Mr.Khan's son "Mr. Khan's son is my son's father."
Mr Khan's son = myself

Therefore there are two important thing in this above statement.
My son's father = myself
Mr Khan's son = myself
So the relation between me and Mr. Khan is Khan is my father. Optin D is correct. Read above all discussion and understand it.

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