- 45% of people use mouthwash everyday.
- There are more chickens than people.
- Snakes can see even with their eyes closed.
- Cans of diet soda will float in water but regular soda cans will sink.
- The Hindu-Arabic numeral system began developing as early as the 1st century with a full system being established around the 9th century, forming the basis of the numerical digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 that we use today.
- Opposite faces of dice always add up to 7.
- Born in 1953, British mathematician Andrew Wiles is most famous for proving Fermat's Last Theorem.
- Bats are the only mammals that fly.
- It takes 17 muscles to smile and 43 to frown.
- When born a baby giraffe is 1.8m (6ft) tall.
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