The strangers in your dreams are actually people that you've seen in real life.
50
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
No one knows Albert Einstein's last words. Just before he passed, he spoke several words in German, but his nurse only knew English.
154
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14