A free app for Android, by TapChill.
If you like games that allow you to exercise your mind, this might be the best app for you.
The TapChill Quiz game is a trivia game where you are asked a bunch of questions that cover all sorts of categories, such as brands, people, music, places, sports, and many more. This is a multiple-choice quiz, so you can guess the answers if you have no idea what the questions are and want to go with your gut feel.
By answering a question correctly, you get to unlock the next level. Do this until you are at the very end.