This is a HB HB displays one of 20 puzzles available to chance. Try on your head to find the solution and check remaining press 0 (to display the answer). They are primarily thinking puzzles, logic and riddles. If you want I can make mathematical puzzles or images (where you should find something for example). Hoping that you like it!
Additions of 10 optical illusions.
News:
ADetec v0.2:
* 10 optical illusions have been added
* Homebrew more stable