On Tue, 18 Jun 1996, Kergma, The Chaotic Trickster wrote:

A portrait hung in a gentleman's library.  He was asked whom it 
represented.  He replied, "Uncles and brothers have I none, but that 
man's father is my father's son."   Who was the portrait of?

It was a picture of... himself!

And....

Explain how a window can be made twice its former size, without 
increasing either its height or width.

Increase the depth of the window.

	Thomas Hamill