Play against random oppenents

Question

Are the questions of the quizzes made by users of this app? I am talking about the challenges when you click on “Play”.

Can I trust the answers of the questions?

Answer 1

Many of them are made by users.
You should trust the answer because the have passed a revision proccess. Unfortunately there have been some wrong quizzes. If you found a mistake you should report it via the report button on top right corner but you should complete a challenge first to know what I'm talking about.