- The most popular snack food is potato chips.
- In Switzerland, it is illegal to own only one guinea pig because they are prone to loneliness.
- The coloured part of your eye is called the iris.
- The $ sign was introduced in 1788.
- It is against the law to put pretzels in bags in Philadelphia.
- An individual blood cell takes about 60 seconds to make a complete circuit of the body.
- The Great Wall of China is approximately 6,430 Km long (3,995 miles).
- One is the only number with letters in reverse alphabetical order.
- A Boeing 747 airliner holds 216,847 litres (57,285 gallons) of fuel.
- A dolphins top speed is 60kmh (37mph).
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