Brain Teaser Advent Calendar. A dozen metal disentanglement puzzles tease your brain while you count down to christmas with this enigmatic advent calendar. Countdown to christmas with this fun brain teaser advent calendar!

Now that you know puzzling’s potential brain benefits, why not gift yourself (and your brain) one of these cheerful, colorful puzzles to cozy up with on a winter night? Test your wits and challenge yourself with a new daily puzzle, from logic conundrums to word games.