I found this chart on mibn2cweus' link - thank you mibn2cweus - very informative!
IQ Range Classification
140 and over Genius or near genius
120-140 Very superior intelligence
110-120 Superior intelligence
90-110 Normal or average intelligence
80-90 Dullness
70-80 Borderline deficiency
Below 70 Definite feeble-mindedness
It has been shown that many high intelligent people lack common sense so don't be under the impression that intelligence is a panacea for future success.