3. Offered a new pen to write with, 97% of all people will write their own name.
4. Male mosquitoes are vegetarians. Only females bite.
5. The average person's field of vision encompasses a 200-degree wide angle.
6. To find out if a watermelon is ripe, knock it, and if it sounds hollow then it is ripe.
8. Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
9. It snowed in the Sahara Desert in February of 1979.
10. Plants watered with warm water grow larger and more quickly than plants watered with cold water.
11. Wearing headphones for just an hour will increase the bacteria in your ear by 700 times.
12. Grapes explode when you put them in the microwave.
13. Those stars and colours you see when you rub your eyes are called phosphenes.
14. Our eyes are always the same size from birth, but our nose and ears never stop growing.
15. Everyone's tongue print is different, like fingerprints.
17. At 40 Centigrade a person loses about 14.4 calories per hour by breathing.
18. There is a hotel in Sweden built entirely out of ice; it is rebuilt every year.
20. Onions help reduce cholesterol if eaten after a fatty meal.
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