A great educational tool for evaluating your IQ, critical thinking, attention to detail and ability to make pressure decisions are a visual brain puzzle. According to research, completion of images and puzzles can regularly increase work memory, help you see models and even encourage the plasticity of neurons, which is the ability of the brain to change and adapt in response to experience, education and injury. The solution of such puzzles also strengthens the prefrontal cortex, part of the brain associated with self -control, planning and critical thinking.Such types of tasks usually use psychologists to assess cognitive flexibility or the ability of your brain to adapt to new knowledge. The intriguing thing is that you most likely have high than normal IQ if you can determine the differences in the busy conditions in less than five seconds.So, this visual puzzle is made for you if you like the problem and quickly the mind. There is only one requirement: do not try the solution before you scroll to see it. Well, that would be a cheating.This is the situation: Students pass the exam in a busy class. Students write carefully, the instructor controls, and the tables are neatly lined.But wait – what doesn’t feel right. In this picture, one student uses some questionable exam methods.You have exactly five seconds to expose the cheater using your sharp observation.Learn the image. Get your Sherlock Holmes. Look from left to right and back in the class. Do you have suspicions about any of the students? Do you see anyone -anyone who looks at the letter of answers to another student?You are quite able to catch the guilt if you were able to catch the cheater in five seconds and less. It also shows how good you are.
Answer this Optical illusion
The decision is out! Don’t worry if you are still trying to find a cheat! Below we disclosed the decision. To find out if your suspicion is correct, scroll down.

The guy behind has answers written all over his hands and copy everything on the letter.