Usually people classify the level of intelligence as follows: those with an IQ of 140 or above are called geniuses, those with an IQ of 120-140 are the best, 100, 110, and 120 are excellent, 90-100 are ordinary talents, and 80- 90 is subnormal, 70-80 is borderline normal, 60-70 is mild mental retardation, 50-60 is stupid, 20-25 is stupid, and below 25 is an idiot.

Please accept it, thank you!