Useless, but amazing facts!

I'm a geek. Always been, always will be. Therefor I enjoy useless facts, and like most of you guys, I find these facts easier to remember, than those I have use for. Today's list of useless, but amazing facts:

-Did you know that most alcoholic beverages contain all 13 minerals necessary for staying alive?
-The male octopus usually tear off his mating arm, insert it inside the female before he swims of to die somewhere?
-If the population of China should walk pass you in a single line, it would take about 30 years for it to pass?
-The rubix cube is the most selling item through all time, and it has 43,252,003,274,489,856,000 configurations?
-Hydrogen is a flammable gas, but combined with oxygen we get water, which puts fire out?
-It takes the brain 82 ms to process the information of what you're actually seeing, so you're never actually living in the now?

Please comment below if you would like to know more useless, but amazing facts (^o^)/