over 40,000
About how many members does American Mensa have?
It's the largest national Mensa chapter in the world.
Source: Wikipedia en.wikipedia.org
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Which country has produced the most Nobel Prize laureates?

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over 40,000
It's the largest national Mensa chapter in the world.
Source: Wikipedia en.wikipedia.org
about 2%
IQ scores are designed to follow a bell curve centered on 100.
Source: Wikipedia en.wikipedia.org
about 3 points per decade
Researchers still debate the causes, though the trend has slowed in some countries recently.
Source: Wikipedia en.wikipedia.org
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Each question asks you to guess a real number about intelligence, IQ and high achievement. After you answer you see how everyone else guessed, then the real figure and where it comes from.
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