Question

A man and his son were in an automobile accident. The man died on the way to the hospital, but the boy was rushed into surgery. The emergency room surgeon said, “I cannot operate, because that is my son!” How was this possible?

Answer 1

because who was the surgeon was his son and he was his father

Answer 2

This surely is a really interesting question.

The situation states that the father of the boy dies in the accident, while the boy goes for surgery.

As the gender of the doctor has not been discussed at any time, it is clear that the doctor can be a female too.

Given the situation, where the doctor says no to the surgery stating the boy is her son, it becomes clear that the doctor is the mother of that boy.

So the reason why the doctor says I can't operate my son is that the doctor is the mother of that boy.