World's 20 smartest countries

Posted: 10:35 AM EST Dec 24, 2013   Updated: 12:38 PM EDT Oct 24, 2013

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.

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The U.S. may have a lot of money, but when it comes to brains, we don't even crack the Top 10, according to a ranking of countries with the highest IQ scores by StatisticsBrain.com. Here are the world's 20 smartest countries:

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