The earth is round--prove its not
Columbus discovered America--that'd be the cavement. Columbus set up the first sustainable contact between european nations and the "new world"
Vampire bats suck blood--to quote Dracula: "Scrape and lick"
The first automobile was a Ford--definately agree with your lable
Jupiter is the densest planet--Well, we can only estimate its density. Its true that it would float if you had a tub of water big enough, though.
Lake Superior is the largest freshwater lake in the world--its the caspian, correct?
Sherlock Holmes always said, "Elementary my dear Watson"--he did once or twice, i believe
Houdini died in one of his stunts--he died from oxygen deprivation during one of his stunts, but the effect was not keeling over dead.
Egypt has the worlds largest pyramid--largest pyramid TOMB, for sure
Cleopatra was an Egyption--she was greek
The Sahara is the worlds largest desert
Napoleon was short--he was 5' 4" on the FRENCH measurement, which put him about 5'7" in real terms, the average height for a male at the time
Koalas are bears--i agree with your labling of this a falsehood
Bats are blind--some are close enough to it it doesn't make a difference (cave bats), but some have very good eye site
Meteors are hot when they hit the earths surface--don't know
Humans use 10% of their brains-- don't know
Electricity moves at the speed of light-- at the speed of an electron!
Earths north pole is a magnetic north pole--i agree with this one
Melting icebergs raise water levels--it does
Thomas Edison invented the light bulb--he and swan did at the same time
Thomas Crapper invented the toilet--flushing toilet, i believe, but i could be wrong
Tetanus comes from rust--tetanus comes from anything, but the germs are often present on rust
Cracking knuckles causes arthritis--it weakens them, which can lead to arthritis