Why do elephants have such big ears? What's the difference between fog and mist? Who invented sliced bread? Be the smartest slacker in the break room, the brainiest guest at the wedding, and the cleverest cat at the cocktail party. Whether you're trying to impress your friends, or simply in need of a knowledge fix, Who Knew? is the book for you. Filled with gems of wisdom to dazzle your brain cells, there are plenty of tales to surprise and delight even the most ardent trivia fan. From the plagues of the Middle Ages and the rules of Roman architecture to culinary customs, presidential assassinations, and the contents of James Bond's glass; we cover it all. With a clever quiz at the end of each chapter, you'll be ready for mastermind status in no time. Galvanize your grey matter with this classic compendium as you find yourself asking, "Who knew?"