Optical Illusion for Testing Your IQ: Can you find the hidden Engagement Ring among Watches in 15 Secs?
Optical illusions to test IQ: Optical illusions are usually pictures that show an object, picture or person in such a way that they challenge your thinking and attitude. Their purpose is to test our mental ability and our ability to understand things. There are many types of optical illusions such as physical, mental and cognitive. Research shows that the human brain looks at any object or picture from different angles …