You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
Like fingerprints, everyone's tongue print is different.
250
Coins usually survive in circulation for about 30 years.
66
Couples' personalities converge over time to make partners more and more similar.
235
Play-Doh was first manufactured as a wallpaper cleaner.
122
The chills you sometimes feel when listening to music is called "musical frisson."
18
U-Haul is the world's largest advertiser in the Yellow Pages.
21
The odds of being killed by falling out of bed are one in two million.
136