- Artificial Christmas trees have outsold real ones every year since 1991.
- Birds can sleep with one eye open.
- Dolphins sleep with one eye open.
- The sixth sick sheik's sixth sheep's sick' is said to be the toughest tongue twister.
- A standard 747 jumbo jet has 420 seats.
- Most birds eat twice their body weight each day.
- 30% of people refuse to sit on a public toilet seats.
- The past tense for the English word 'dare' is 'durst'.
- October the 10th is national metric day.
- The first toothbrush was invented in 1498.
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