Domestic cats usually weigh around 4 kilograms (8 lb 13 oz) to 5 kilograms (11 lb 0 oz).

Approximately 850 peanuts make a 18 oz jar of peanut butter.

Researchers have found that doctors who spend at least three hours a week playing video games make about 37% fewer mistakes in laparoscopic surgery than surgeons who didn't play video games.

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