Pop quiz: you have 15 minutes to spare while you wait for your turn in the dentist's office -- now what? You're already caught up on your Facebook feed and the front page of Reddit looks the same as it did 10 minutes ago. So why not take this opportunity to test your mental mettle?
I've put together a small collection of my favorite puzzle games for Android, many of which are free. While some might be incredibly simple in their premise, they can still challenge that gray matter. And, thanks to features such as achievements and … Read more