#5. Christopher Michael Langan – 195 IQ
Langan been called as’ “The smartest man in America” He make himself to write at about age 3 and started to talk in a very small age. He was a goal oriented personality. He has a great sense of humour and from the get go, he loves to solve puzzles and problems. He was a dropped off from school like some other intelligent people as he said that he can teach his teachers more than what they are teaching him. He has an amazing IQ of 195.