I know, is a trivia game with an exciting twist! One know-it-all won’t dominate this trivia game! Everyone plays throughout the game and everyone has a chance to succeed! Players or teams of players bet on how well they will answer the questions from four different categories; “people”, “The world”, “products & works of art”, and “phenomena & events”. I know includes 400 trivia cards from each of the 4 categories of questions (1, 600 questions in total). Each question card has 3 clues for a total of 4, 800 unique clues.