You have to take an IQ test, doi.
IQ = 192
100 x Mental Age/Physical Age = IQ
192/100 = 1.92
1.92 x 14 = 26.88
Well, about 27 years old. Any IQ over 190 is a "Savant", which is the highest level of IQ. I have to admit though, I'm not exceptionally book smart; I learn things on my own (along with determination, of course).