There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
34
Your body is creating and killing about 2.4 million red blood cells per second.
17
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Your thumb is about the same size as your nose.
124
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31