Albert Einstein was a C student in grade school. Eric Newman is no Einstein. I can't imagine that anyone could be a "math whiz" without formal training, because an understanding of theoretical math doesn't just pop into someone's head ... the foundations and structures have to be learned and understood before new math can be conceived. An ordered, logical mind is a pre-requisite for being a math whiz. Anyone that understands the formal language and logic of mathematcis will also have an understanding of the rules of written and spoken language. That is, math whizzes, by definition, cannot be illiterate.
If we stick to what we know, in order to draw an accurate conclusion, we have a high school drop out that is, for all intents and purposes, illiterate. Illiterate high school dropouts cannot be math whizzes simply because they lack the formal training. An accurate conclusion would be that Eric Newman has done nothing to demonstrate intelligence iin any form. It is inaccurate to conclude that because a liar claimed that he had an IQ of 265, 165 and 135, he must be intelligent.