0 of 20 questions.
When CBS broadcast the first color TV show, nobody besides CBS had color television sets!
A diamond heated to 1405Â°F turns into vapor.
A billion years ago, days on Earth were only about 18 hours long.
It's impossible to sneeze with your eyes open.
Your fingernails are not biodegradable.
It's impossible to hum with your mouth open.
Your hair and a rhino's horn are made of the same material.
The wingspan of a 747 airplane is longer than the Wright brothers' first flight.
Someone is born in the US every eight seconds.
Earth rotates a second or two slower every decade.
It's impossible to breathe and swallow at the same time.
According to suicide statistics, Monday is the favored day for self-destruction.
The Eiffel Tower was a gift of friendship from Australia to France.
There are exactly 82 different ways to make change for a dollar.
The Earth is slightly pear-shaped.
Tap water, when viewed under a microscope, looks purple.
Writers used to use bits of swiss cheese instead of rubber erasers to erase pencil marks.
A goat's pupils and an octopus's pupils are both rectangular.
3 quarters, 4 dimes, and 4 pennies is the largest amount of money in coins from which you cannot make change for a dollar.
A man made a statue of himself usiing his own teeth, hair, and nails.