An apparently easy-looking math problem has left internet users scratching their heads. Give it a try to see if you can correctly solve this elementary-level equation.

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In a recently published, PNAS study, professor Andreas Neider and his team found that crows and rhesus macaques take mental shortcuts.

Have you ever wanted to wipe down a table hundreds of times while Elon Musk watches? Training Tesla's humanoid robot might be ...