I have news for all you "MENSA" types: practicing a musical instrument daily from childhood (like Einstein) stimulates the growth of 10 BILLION more brain cells and alternate modes of thinking; and playing alone and wordless in a forest as a young child (like Einstein) develops thinking that is not limited by words, and therefore not limited by prior knowledge.
"IQ" tests measure your ability to solve puzzles presented by ink on paper, either textual, in mathematical notation, or graphical. They do NOT measure the myriad other forms of intelligence, which are oft more utile to society.