How do you play the game trivia crack?

In Trivia Crack, players take turns answering multiple-choice questions across various categories like science, history, and entertainment. Each player spins a wheel to select a category and then attempts to answer a trivia question correctly. If they answer correctly, they earn a character in that category and can continue playing; if they answer incorrectly, their turn ends. The goal is to collect all six characters before your opponent does.