"DUMB Questions Part 4!" joke

What is a "free" gift? Aren't all gifts free?
What makes cheese so confidential that we actually need cheese shredders?
Whatever happened to preparations A through G?
When cheese gets its picture taken, what does it say?
When cows laugh, does milk come out of their noses?
When they first invented the clock, how did they know what time it was to set it to?
Where are the germs that cause ‘good' breath?
Where do they get Spring water in the other 3 seasons?
Why are all blackboards called that when some of them are green?
Why are hemorrhoids called "hemorrhoids" instead of "asteroids"?
Why are they called "stands" when they're made for sitting?
Why aren't there ever any guilty bystanders?
Why do ballet dancers dance on their toes? Why doesn't the company just hire taller dancers?
Why do people tell you when they are speechless?
Why do they give you a tape with a VCR to tell you how to use it?
Why do they put Braille dots on the keypad of the drive-up ATM?
Why do we need training bras? What can we teach them?