Riddle: who am i looking at?

your son

yourself

It's my son. "My father's son" is I. Therefore, "this man's father" is I, so it must be my son.

If it were myself, then "this man's father" would be my father who can't be "my father's son."

http://www.geocities.com/oosterwal/puzzle/dadsona.htm

That riddle is sooo old. I think I was a teen-ager when I first heard it. I am 65 now.

yaaay, u got it right.
it is his son. And yes it is a very old riddle, but still pretty good.

Markr, the question is: you are looking in a mirror and (of the image you see) you say:

this mans father is my fathers son. Thats all there is to it. The answer is it's YOU not your son.

Kev: No, the question was:

Brothers and sisters have i none,
this man's father is my father's son.
Who am I looking at?

You added the mirror.

However, if there is a mirror, and if it is being held so that the speaker sees himself, then the statement "this man's father is my father's son" is false.

And if you bothered to look at the fourth entry on the web site that you provided a link to, you would see the answer is "my son."