"Trivia/general knowledge problem collection" that contains a large amount of problems It contains 62 genres and more than 9000 questions, making it the largest collection of trivia and general knowledge as an app. If you open this app and solve problems, you will increase your knowledge, and it will help you create business topics and improve your communication skills. It's a place where friends can gather and have fun. In addition, it is also useful for general common sense problems of the emp