- Pearls melt in vinegar.
- Baboons were once trained by Egyptians to wait on tables.
- Jack is the most common name in nursery rhymes.
- A nanosecond is one billionth of a second.
- Porcupines float in water.
- Greyhounds can reach speeds of up to 67kph (42mph).
- A tsunami can travel as fast as a jet plane.
- A fifteen-year-old boy invented earmuffs in 1873.
- One is the only number with letters in reverse alphabetical order.
- An average person will spend 25 years asleep.
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