The Impossible Knowledge Quiz is a game in which you will have to answer random questions. This kind of game enhances your knowledge and understanding of a world. The game is usually presented as a game of questions and answers where questions are randomized each time you take the quiz.
You can customize your quiz by selecting categories you are interested in. Questions will be randomized anyway but you choose only branch of knowledge you are interested in.
You can also take a predefined quiz, where questions won't change. This mode allows you to measure your skills against family or friends
If you are afraid that randomized quizz can be too hard, you can also browse Memo.Tools quiz catalogue and find a proper quiz for you. Possibilities are endless