Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Puzzle a day keeps the boredom away

The book begins with an introduction to Mensa. (It means "table," as in Round Table, and no, it's not an acronym.) Then, you have 12 chapters: one for each month. Each chapter begins with some factual/historical information, explaining the origin of the month's name, when the month was established, and more. Then there's a puzzle for each day of the month. There are 366 puzzles in the book -- one for each day, including Leap Day. The percentage score for each puzzle of how many Mensa members got the puzzle right is a nice touch -- it lets you know how you are doing. The writing is rather dry, so don't expect much humor. Highly recommended for those who want to keep their brains sharp by doing daily puzzles.Word game lovers may seize upon the excellentTHE Book of Word Games: Parlett's Guide to 150 Great and Quick-to-Learn Word Games. If you're more a science type, you may enjoyWhy Cats Land on Their Feet: And 76 Other Physical Paradoxes and Puzzles.