BRAIN AGE

This will drive you nuts.   The site instructions are in Japanese , so   read below! 
 
1. Touch 'start'
2. Wait for 3, 2, 1.
3. Memorize the number's position on the screen,   and then click the circle from  the   smallest   number to the  biggest   number.
4. At the end of the game, the computer will tell you the age of your brain.   
Good luck!

http://flashfabrica.com/f_learning/brain/brain.html