Sex burns about 360 calories per hour.
860
The cat brain weighs about 30g.
167
A hummingbird weighs less than a penny.
1k
The Main Library at Indiana University sinks over an inch every year because when it was built, engineers failed to take into account the weight of all the books that would occupy the building.
240
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66
Fidgeting can burn about 350 calories a day.
201
The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
You burn more calories sleeping than you do watching television.
348