BrainVain

This is the perfect app to sharpen and stimulate your mind with hundreds of mysteries and brain teasers. Keeps you company in quite times as well.

BrainVain usage: By simply selecting the quiz, it displays the question; when you're ready to reveal the answer, select the light bulb. Each answer is automatically displayed after a subsequent reveal.

Have fun and be entertained for hours!

Feedback and suggestions are most welcomed.