Please click on the picture to enlarge the view. The people that develop this are simply brilliant, I can't stop play just to figure out how it works.
The game: think of any object, trust me, anything, and click away according your preference, within 20 question or less, 20Q will guess it, or very near to it.
Not convince, try again, and again, it is like magic. (Link)
Tags: Internet Web2.0 20Q