"Ready to take a tour of our categories? Score at least 8 questions correct in any quiz in 11 different categories (Animals, Brain Teasers, Geography, etc). You may replay quizzes not taken in the past 30 days."
I really like that this tracks all the quizzes I've played today with their categories and my scores AND that there is a separate tracker for completed categories that count toward the challenge total. Nice.
This is not a signature...