If you love a good puzzle, this App of the Day will put your skills to the test. It is called, The Room. In the game your former mentor has disappeared and, it's up to you to find out what he was working on, and what happened to him. The Room is a 3D game that has you solving puzzle boxes with dozens of tiny riddles. Once you think you've beaten it, another section opens with even more puzzles. The game burst on to the scene in late 2012 and has earned a perfect 5-star rating. The Room will set you back two dollars, but for puzzle-lovers, it is a must have. Unfortunately it is only available on the newer iPads (2,3,& 4).