> 1: Why do we drive on parkways and park in driveways?

I park in the garage.

> 2: Why are shipments put on cars/trucks, and cargo is put on ships?

Shipments are also placed on ships, planes, pack mules, etc. As far as cargo, you don't watch enough automobile commercials that mention "cargo space" not "shipment space."

> 3: Why are hotdog rolls sold in packages of six, and hot dogs sold in packages of eight?

:: going to the kitchen ::
Nope, there are 8 hot dog buns in the package. I can't comment about hot dog rolls.

> 4: Why do we yell "Heads up!" when we want someone to duck?

When people yell "Heads up!" I just snicker perversely.

> 5: Why do some consumer products say "all-purpose" when they only serve one purpose? i.e. scotch tape, household cleaners...

I've used scotch tape for dozens of uses. My favorite thing to do with scotch tape is to take the plastic ring in the middle when all the tape is used up and spin/roll it on a large flat surface.

> 6: Why are softballs called "soft"? (Obviously the inventor never got hit in the face by one.)

Depending on where you are from, the game of "softball" can involve completely different types of balls. Or am I thinking of lobball?

> 7: Why do people ask meaningless questions?

Becuase they are lonely?

> Hmmm... Just some things floating around in my head...

I doubt it; I bet you got these in an email and thought you'd post them here and show how witty you are.

-- Patrick, who's not so much witty as a smart arse.