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Riddle That is a logic game that will provide you a big dose of entertainment.
Each riddle is different and they often don't give you any instructions how to solve them. Think, search, be tricky, do whatever you want - just try to get to the Hall of Fame.
Diversity of tasks will keep you busy for sure and the curiosity and the desire to test yourself will lead you to the more difficult levels.
If you have problems fill free to use extra hints application, but use them only as a last resort because you can finish the game even without them.
Good luck with Riddle that!