"Brain Training 2" is a mobile app from Jammsworks, available for Android. As the name suggests, it is a brain training app designed to keep your mind sharp and enhance your problem-solving skills. The app consists of 100 questions that gradually increase in difficulty as you progress through the stages.

The gameplay is simple and straightforward. Each stage has 10 questions, and you need to answer them all to proceed to the next stage. If you answer a question correctly, you receive a "Keyword" and "Points" that can be used to unlock hints and progress to the next stage, respectively. If you get stuck on a question, you can use hints or share the question with others to get help. If all else fails, you can use the "Give Up" button to reveal the answer. However, you must clear the current stage to access the next one.

Overall, "Brain Training 2" is an excellent app for anyone who wants to keep their mind sharp and challenge themselves with fun and engaging puzzles.