IQ 21Severe Intellectual Disability
An IQ of 21 suggests a severe intellectual disability. An individual with this IQ will face considerable challenges in completing daily tasks and is likely to depend on others for support.
They are also likely to encounter significant challenges in understanding their surroundings and communicating. This IQ range is considered very low and represents a small fraction of the population. It's important to note that IQ tests are not the sole measure of a person's intelligence, and other factors contribute to defining intelligence.
Outliers: The Story of Success
Malcolm Gladwell
In this stunning new book, Malcolm Gladwell takes us on an intellectual journey through the world of "outliers"--the best and the brightest, the most famous and the most successful....
Brain Games #1: Lower Your Brain Age in Minutes a Day
Brain Games
This is the first book in the popular Brain Games Lower Your Brain Age in Minutes a Day series, which was developed to help people increase their memory, sharpen their reasoning, and expand their creative thinking....
IQ Challenge: More Than 500 Visual, Verbal and Numerical Puzzles to Help Improve Your IQ
Deborah Hercun
IQ Challenge is divided into 20 sections of equal length, ranging from simple games and conundrums at the beginning, to fiendishly difficult logic puzzles....