"Hair and fingernails keep growing after you die.."
No.. they don't. The skin actually starts shrinking so it just looks like the hair and nails are growing.
"I like my steaks bloody!"
No, you absolutely wouldn't, unless you're a vampire. What you love is a steak gushing with water and myoglobin ..but it doesn't really sound that good, does it?
"Water is a great conductor."
Water itself doesn't actually conduct electricity that well. It's the minerals, dirt and other impurities that conduct the electricity so well. The more you know...
"The Great Wall of China is the only man made object visible from space."
There's actually bunch of man made objects visible from space like The Greenhouses of Almería, Bingham Canyon Mine, The Great Pyramids at Giza, many bridges and most metropolitan areas at night.
"I'm a little hyper, I've had a lot sugar today."
I don't know why you're hyper, but it's not because of the sugar. Sugar rush is a placebo and no study has actually found any connection between sugar and hyper activity.
"Penguins mate for life."
Most do, but not all of them. For example the famous Emperor Penguins only stays with one partner for one mating season and finds another for the next one.
"You can't touch the baby bird, the mother will abandon it!"
Birds don't really have a good sense of smell and there's no way they could recognize a human having handled their babies. Please save the baby birds!
"Which of the five senses could you live witho..."
*cough* *cough*.. There's actually more than five senses and yes I'm fun at parties... Depending on how you count them there's 9 to even 21, for example pressure, pain and heat are all different senses.
"You'll get an arthritis cracking those knuckles."
No connection between the two have been found, but you might annoy the people around you..
We only use 10% of our brain's capacity."
No, we use all of it, but not at the same time.
"Damn, you're as blind as a bat."
Bats aren't blind. Some of them actually have a great eyesight.
How many of them did you know?
Have a good day!