The "Cobra Effect" is where a solution for a problem actually makes the problem worse.
21
It is impossible to hum if your nose is plugged.
366
The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.
476
It's impossible to kill yourself by holding your breath.
703
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
Coins usually survive in circulation for about 30 years.
66
An underwater forest off the coast of Alabama that is 50,000 years old was uncovered by Hurricane Katrina.
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