It is impossible to hum if your nose is plugged.
366
More than 10% of the world's salt is used to de-ice American roads.
54
You can immediately cool down a car that has been sitting under the sun by rolling down the window on one side and opening-closing the door on the other side 5-6 times.
23
Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
The WD in WD-40 stands for Water Displacer.
30
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
"Strategic incompetence" is the art of avoiding certain tasks by pretending you don't know how to do them.
16
No piece of square dry paper can be folded more than 7 times in half!
26