Complex sentence: It contains over 1,000,000 trivia questions in 90,000 quizzes, all submitted by over 4,000 diffzes are created and submitted by members of the community, and placed online for anyone to play for free.
Split into simpler sentences: It contains over 1,000,000 trivia questions in 90,000 quizzes, all submitted by over 4,000 different contributors. Quizzes are created and submitted by members of the community, and placed online for anyone to play for free.