- A person produces enough saliva to fill 2 average size swimming pools during their lifetime.
- All insects have 6 legs.
- The expression to 'knuckle down' originated from playing marbles (players used to put their knuckles to the ground for their best shots).
- In 1878 the first telephone book made contained only 50 names.
- After Hawaii, New York is the state surrounded by the most water.
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