BrainDen - Riddles & Brain Teasers

BrainDen 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, youll move up a level. A wrong answer leads to an easier question. But youll want to move up to improve your Knowledge Quotient, recalculated after every round. Categories: - General knowledge - Books & Authors - Famo...