Mars had an oxygen-rich atmosphere around 4 billion years ago
13
You forget 90% of your dreams.
256
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
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
A cow produces around 200,000 glasses of milk in her lifetime.
373