Crossword puzzles are a marvelous mental workout. A delightful new book about them shares plenty of crossword lore and puzzle-solving tips. Also, performers who tell each other break a leg aren’t really hoping someone gets hurt. The phrase...
cubing n.— «Remember Rubik’s Cube, that devious little puzzle from the 1980s? Well, to paraphrase a movie from that era: It’s back!…Cubing—as it is known—has had a revival, thanks to the growing popularity of...