By weight, Bone is five times stronger than steel.
417
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
57
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Dutch, on average are the tallest people.
187
There are more than 150 million sheep in Australia, and only some 20 million people.
247
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104