Braingle : Brain Teasers & Riddles for iOS

Bringle is the quiz app for smart people. Its designed to stimulate your brain with over 5,000 high-quality, challenging, and informative questions.

Each lesson tests your wits with 10 questions from 6 different categories. The difficulty level depends on you: get an answer right, you'll move up a level. A wrong answer leads to an easier question. But you'll want to move up to improve your Knowledge Quotient, recalculated after every round.

Categories:

- General knowledge

- Books & Authors

- Famous Personalities

- Honors & Awards

- Inventions

- World Geography