The Cognitive Ability Test

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The restaurant bill is $17.34. What’s your change if you pay with $20?

$2.74
$3.76
$3.66
$2.66

Fact Lab

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Continue with the IQ test afterwards

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Interesting fact:

Want to establish greater empathy with your fellow human beings? Here’s a trick: Try speaking to them in their right ear in conversations. Seriously. This somehow has a positive effect on the brain, making the person inadvertently more sympathetic.