What if the building was N stories high?
You have a glass of water and a glass of orange juice. The volumes are identical. You take a teaspoon, put it in the glass of juice, take a full spoon and put it in the water. After stirring, you take a full teaspoon of the mixture back into the glass of juice. Which amount is greater: the amount of juice in water or the amount of water in the juice?
Sudoku is a simple numbers game that has become very popular with newspapers lately. The objective is to fill the puzzle so that every row, every column, and every 3-by-3 submatrix contains the digits 1 to 9, with no number repeated. The puzzle is essenitally a constraint satifcation problem, and here's an applet I wrote for solving it - you can type in your own numbers by clicking on each cell. Contact me if you'd like the source code.
If you think that's too easy, the click here.
This is a slight variation to the well-known Leap Frog game. Click on each "Felix the Cat" to move. The aim is for the cats to switch positions. Each cat can only move in the direction that it's facing and cannot jump more than one other cat at a time. If you get stuck refresh this page to restart. Contact me if you'd like the source code.