One million dollars in $100 bills weighs 20.4 lbs (9.25kg)
The most common time to wake up at night is 3:44 a.m.
Microscopic algae floating in the ocean produce not less than 70% of the oxygen people breathe.
One fifth of French people have experienced depression which is making France the most depressive country worldwide.
Moose are known for having such poor vision to the extent sometimes they try to mate with cars.