Here's an interesting little brain math internet teaser that a friend of recently told me about:

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"Fido Puzzle"

1) Go to: http://digicc.com/fido/
. Have a piece of paper and pen to write with.

2) After reading each window, click on the cartoon boy in the lower right of the picture to continue to the next step.

3) In the last window type in your answer in the white window using your keyboard. (There is no cursor)

4) The answer



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teehee
I think, This thing is so cool and makes one wonder who's the genius behind it.

hysterical