Clicky:
http://www.ouverture-facile.com/start/index.html
Its a series of puzzles (90+!) each getting harder and harder. Knightsword and I have been doing them while at work... Damn some really make you think "outside the box"! I'm on level 9 right now.
Crushinator ProTips for this one:
Read the clues and the puzzles' title, they'll help a lot.
Read the "rules" of the game.
Use outside materials when necessary (like wikipedia, google, etc)