Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
Women blink nearly twice as much as men.
152
The WD in WD-40 stands for Water Displacer.
30
There's a company in China that allows you to hire someone to stand in line for you for $3-$5 an hour.
14
Couples' personalities converge over time to make partners more and more similar.
235
The odds of being killed by falling out of bed are one in two million.
136