World's 20 smartest countries

Published On: Dec 24 2013 09:35:43 AM CST   Updated On: Oct 24 2013 11:38:25 AM CDT
Book, reading glasses

According to a recent survey, American adult proficiency in literacy, numeracy and problem solving ranks as some of the lowest among developed countries, despite a relatively high level of education. Take a look at the world's 20 smartest countries.