why is abbreviation such a long word? why are there interstate hiways in hawaii? why is their an expiration date on sour cream? why do we drive on parkways, and park on driveways? if you're driving a vehicle at the speed of light, what happens when you turn on the headlights? why don't you eveer hear about gruntled employees? what is a free gift? aren't all gifts free? why isn't phonetic spelled the way it sounds? what was the best thing before sliced bread? what's another word for synonym? what is the speed of dark?