Stretch your brain with puzzles from Mensa, every day of the year. Test your mental mettle every day with a word puzzle, number problem, logic challenge, or other cranial conundrum that's so tough, it's sanctioned by Mensa, the internationally famous high-IQ society. This is puzzle-solving taken to the extreme. Deduce the secret codes in Spymaster. Fill in the Pangrams. Locate the hidden Treasures. Plus tricky twists on Sudoku, next-level word searches, and games like Percent Puzzler: A number is increased by 20% and then the resulting number is decreased by 20%. The result is 10 less than the original number. What was the original number? (250.) Stumped? No worries--answers are on the reverse of each page. Printed on responsibly sourced paper and 100% recyclable.