Confusing English

This is the email I got from my ex-boss and it really cheer up my day.

1. If Fed Ex and UPS were to merge, would they brand it Fed UP?
2. Do Lipton Tea employees take coffee breaks?
3. If olive oil comes from olives, where does baby oil come from?
4. If people from Poland are called Poles, why aren't people from Holland called Holes?
5. Do infants enjoy infancy as much as adults enjoy adultery?
6. Why the man who invests all your money called a broker?
7. If horrific means to make horrible, does terrific mean to make terrible?
8. Why is it called building when it is already built?
9. If a book about failures doesn't sell, is it a success?
10.If you're not supposed to drink and drive, then why do bars have parking lots?
11.If you take an Oriental person and spin him around several times, does he become disoriented?
12.If vegetarians eat vegetables, what do humanitarians eat?? Humans ???
13.If working hours are meant for working, then why are you reading this???