Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
20252 is Smokey the Bear's own zip code.
35
When watching a DVD press stop-stop-play-skip to skip the ads and go straight to the movie.
23
There is a fake village with fake shops and restaurants that is actually a care home for elderly dementia sufferers in the Netherlands.
7
On average, every dollar bill you touch has over 3,000 different types of bacteria.
8