Check this out.
There are 2 pictures side by side that appear identical.
However, there are 3 differences between them.
Only 19 people have been reported to find them.
If you find them, you are among the smartest in the world.
I only found 1 after some serious looking.
If any, this will certainly "wake you up"! :)
http://members.home.nl/saen/Special/Zoeken.swf