Our Right Lungs takes more air than our left lung.
194
You forget 90% of your dreams.
256
Your fingernails grow faster in summer.
744
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
You can't tickle yourself.
29