Kick-start your morning with a crossword that’s designed to get your neurons firing, yet is solvable before the coffee finishes percolating. The only crossword calendar tough enough to be sanctioned by Mensa, the internationally famous high-IQ organization, 10-Minute Crossword Puzzles Page-A-Day Calendar is compiled by veteran crossword editor Stanley Newman. Each perfectly paced puzzle is pure mental stimulation—and is fun and challenging in equal measure.