The sight of a red fire truck will catch your eye, but it's not the reason emergency vehicles are painted scarlet.

BIG QUESTIONS
If you've been using the terms pretty much interchangeably, you're technically wrong. But you're not alone.
Newer car models make it obvious when you're due for an oil change.
When discussing Marilyn's measurements, you have to take vintage clothing sizes into account.
Though they differ in taste and appearance, white asparagus and green asparagus are the same plant species.
Bowling shoes aren't top-line kicks, but they do more to keep you safe than you might think.
The silhouette on the NBA logo—a player dribbling and swiveling between a red and blue background—is Lakers legend Jerry West. But how does he benefit, if at all?
If it were up to Alexander Graham Bell, we probably wouldn’t.
Though you can use them interchangeably in recipes, canola oil and vegetable oil are not the same thing.
Her Majesty Queen Elizabeth II was born on April 21, 1926. But having a second birthday is one of the many reasons why it's good to be the queen.
Her forehead seems strangely free of follicles.
These color-coding labels don’t exactly say what they mean—but you can make some educated guesses.
If you can't resist puckering your mouth when you lick a lemon or snack on Sour Patch Kids, you can thank evolution.
Will Smith’s AMPAS resignation prompted a lot of questions about resignee privileges. Here are some answers.
And what do ‘AM’ and ‘FM’ stand for, anyway?
A special ingredient helps sour candy pack a mouth-puckering punch.
From rotten eggs to stinky socks, the most bizarre Jelly Belly flavors often seem to come out of nowhere. Here’s how the brand actually creates those weird jelly beans.
If you’ve ever picked up a softball, you probably realized that the name is a misnomer.
‘Spick’ doesn’t mean ‘clean.’ And ‘span’ doesn’t mean ‘clean.’ So what’s going on here?