The scale for IQ scores is designed to have a mean of 100 and a standard deviation of 15.
it's important to note that there are different types of IQ tests, and various organizations and individuals claim to have achieved exceptionally high scores. The validity and reliability of some of these claims can be a subject of debate.
It's also worth mentioning that IQ tests have their limitations in measuring the full range of human intelligence, as they primarily focus on cognitive abilities and do not encompass other aspects such as creativity, emotional intelligence, or practical skills.