- It takes 110 silkworm cocoons to make an average tie.
- The smallest ten prime numbers are: 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29..
- The US is the world's largest consumer of coffee.
- The hydrochloric acid found in your stomach is strong enough to dissolve a nail.
- The word 'karate' means 'empty hand'.
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