Brain Puzzle: Measure your IQ and Test your Mind – a fun puzzle game with many different tasks. Test your Iq and challenge your own intelligence. Improve your skills, develop your memory and logic, compete with your friends and become the smartest. This will definitely be useful to you in life and you will have fun and spend your free time. Tasks are specially designed to develop analytical, spatial and other types of thinking. Find out how many times the number 5 occurs in 100 and much more.