The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
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Each day, more than $40 Trillion Dollars changes hands worldwide.
37
Cash machines are as dirty as public toilets.
174
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
A typical lead pencil can draw a line that is 35 miles long.
158
An olive tree can live up to 1,500 years!
58
Less than 3% of the water produced at a large municipal water treatment plant is used for drinking purposes!
24