It will guess your number

http://www.milaadesign.com/wizardy.html

This thing is a little freaky. I have yet to figure this one out. It keeps on working out correctly.

Try it.

59 is the number you guessed or the final numbe ryou have after your calculation?

59: 5+9=14 59-14=45
Your final number will always be a multiple of 9.

If you look at all of the symbols for the mutliples of 9 they are the same. The symbols just rotate at random each time you do it.