- The human body of a 70 kg person contains 0.2mg of gold.
- Mount Everest is 8.9km (5.5 miles) high.
- Your mouth produces 1 litre of saliva a day.
- All of the cobble stones used to line the streets in New York were originally stones found in the hulls of Belgian ships ballast.
- The word racecar can be spelled the same way backwards.
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