The brain is an important tool, and like all tools it must be kept sharp and ready for action. Puzzle games are a great way to do this, and puzzle games are a fun way to do this. But some puzzle games are better then others, and here ware the ones that stood out the most for us:

Portal 2
Catherine
Professor Layton and the Last Specter

Thanks to it's unique testing room and brilliant dialog, Portal 2 wins our Best Puzzle Game for 2011. Between the subtle pushing the designers give to get the game moved along and great characters this seems like a no brainer to me, and one of the easiest puzzles I solved all year.