You forget 90% of your dreams.
256
Your body is creating and killing about 2.4 million red blood cells per second.
17
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13