Yes, is it already Christmas today? Behind each door, three puzzles await every day to keep your brain engaged. There are more than 70 puzzles, ranging from exciting brain teasers to tricky logic problems. With 24 sealed pages, you can expect new puzzle challenges every day. In a festive Christmas design, this is the perfect gift idea for puzzle enthusiasts during Advent. All solutions are provided in a clear appendix. Not entirely, but the Advent Calendar Memory Training sweetens your wait until Christmas - and it's 100% calorie-free. For your daily dose of puzzle fun, there are 72 tricky puzzles and brain teasers of varying difficulty levels located within the 24 tear-off double pages. Every day, three letter, math, and logic puzzles contribute to your daily brain fitness program. And if you need a little help, all solutions are conveniently located in the appendix.