A Google a Day - Online trivia game where you use Google's search to answer questions as fast as you can.
Songlio - Free musical guessing game: race friends to name that tune
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Rock On! - A song pop adventure - music trivia awesomeness
Trivia Crack Kingdoms - The amazing quiz game that lets you test your knowledge and challenge your friends to see who is the smartest. Developed by Etermax
SongTrivia2.io - Songtrivia2.io is a browser and mobile blind test game that allows you to play in real time with your friends or against strangers. Several musical themes, difficulty and game modes are available to create lots of different musical quizzes.