World's 20 smartest countries

Published On: Oct 09 2013 02:41:54 PM EDT   Updated On: Oct 24 2013 12:38:25 PM EDT
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.