Why do you need a driver's license to buy liquor when you can't drink & drive? Why isn't phoenetic spelled the way it sounds? Why are there interstate highways in Hawaii? Why are there flotation devices under plane seats instead of parachutes? Why are cigarettes sold in gas stations when smoking is prohibited there? If 7-11 is open 24 hours a day, 365 days a year, why are there locks on the doors? If nothing ever sticks to TEFLON, why does TEFLON stick to the pan? If you tied buttered toast to the back of a cat and dropped it from a height, what would happen? Why do they put Braille dots on the keypad of the drive-up ATM? Why do we drive on parkways and park on driveways? Why is brassiere singular and panties plural? Why is it that when you transport something by car, it's called a shipment, but when you transport something by ship, it's called cargo?
You know that little indestructible black box that is used on planes, why can't they make the whole plane out of the same substance?