Do Vui Dan Gian - Đố Vui is a puzzle game designed for Vietnamese users interested in traditional folk riddles. Featuring a variety of folk riddles, intelligence tests, and tricky puzzles across different themes, this app offers engaging challenges. Players can enjoy a mix of easy, moderate, and difficult questions. In case of difficulty, they can seek help from friends by sharing questions on social media platforms like Facebook and Gmail.

This free app provides hints for revealing one letter and encourages social interaction by allowing players to ask friends on platforms such as Facebook and Twitter for assistance during quizzes.