Why do dogs have an extra paw pad on their front legs?
These corn-chip-smelling paw pads serve a helpful purpose.
Do elevator โClose Doorโ buttons really work?
It depends. If you're in the United States, probably not. If you're outside the U.S., probably so.
Why do we eat cake on birthdays?
Your birthday wish for birthday history has been granted.
Why do we get muscle cramps after heavy exercise?
And why, of all things, pickle juice can help.
Why is 1 not a prime number?
Fun fact: One wasn't even considered to be a *number* for a long time.