How to tell if you're smarter than average

Are you tall and thin?

Do you own a cat?

Are you partial to a bit of recreational drug use?

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Are you the eldest sibling?

Do you take music lessons?

Are you left-handed?

Are you a non-smoker?

If you answered yes to all these questions, you are extremely clever, according to Business Insider, who put together an infographic of traits and behaviors that are associated with higher intelligence.

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