How did you know that? is an addictively fun trivia game with over 400 interesting and unpredictable questions. Can someone yodeling cause an avalanche? Is it possible to break a diamond with a hammer? Get ready to hear the other players yell out “How did you know that?!” when you nail a question no one else knows! Ages 14+ 2 or more players 110 cards with 440 questions 5.75" x 5.75" x 1.75"