10 Randomly Useless Facts Part 4

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More useless facts to kill time!
Part 1: http://endlessfacts.com/p/ahnLl
Part 2: http://endlessfacts.com/p/yAlwW
Part 3: http://endlessfacts.com/p/jy1e0


1
Your teeth are home to 10,000 million bacteria per square inch.

2
The muscles that close a crocodile's jaws exert a force equivalence to a truck falling off a cliff, but the muscles that open them are so weak that they can be kept shut by a rubber band.

3
A hammerhead shark can be rendered completely immobile for 15 minutes by turning it over and tickling its tummy.

4
99% of Austrians are German, though most Austrians insist that they aren't.

5
Dueling is legal in Paraguay as long as both parties are registered blood donors.

6
When the Cornhuskers play at home in Memorial Stadium, the stadium holds more people than Bellevue (the third-largest city in Nebraska).

7
Two-third of people on Earth have never seen snow.

8
A hummingbird weighs less than a penny.

9
There are more vacant houses than homeless people in the U.S.

10
If you try to suppress a sneeze, you can rupture a blood vessel in your head or neck and die.