Url: http://www.right-answer.net/

Tags: French, Puzzles, Hacking, Mathematics, Logic, Cryptography, Steganography, Programming, Challenges,

This website wants to make you think and learn in several challenge spread over several categories such as logic, programming, exploit, cryptography or steganography. The more the challenge is difficult, the more it gives experience. You have only your brain to gain experience and level up but be careful to not spend all of your health!