Puzzler of the week

[Scott MacLean]

This week's puzzler:

Tommy, Dougie and I are sitting around the office one day at Car Talk Plaza. We were noticing how dingy the place looked. We'd been there 15 years, and the place had never been painted. So, we decided to paint Car Talk Plaza.

We didn't know which team of us was going do it, so we sat down and decided to do a little math. We determined that Tommy and I together could paint the entire Car Talk plaza in 10 days. After all, we had a lot of painting experience as kids, having painted Dad's car a couple of times with brushes.

Dougie and I could do it in 15 days. And, if Doug and Tom worked together, they could do it in 30 days.

The question is how long would it take each of us, painting by ourselves, to paint
the whole of Car Talk Plaza?

Last week's puzzler:

There are two guys sitting around, and one of them is looking at a piece of paper. He says, "Hah! This is interesting."

The other guy says, "What's interesting?"

And, the first guy says, "Well, this is a bunch of names of cars, past, present, and future, and there's something interesting about it. I'll read you some of them:

AMC Eagle
Ford Falcon
Dodge Charger
Ford Bronco
Plymouth Colt

And, my personal favorite...Daihatsu Rocky."

The other guy says, "So what?"

But, there is a big deal. What is it that's unique to the names of these cars?

Last week's puzzler answer:

I'll give you the answer this way. AMC Philadelphia Eagles, Ford Atlanta Falcons, Dodge San Diego Chargers. Each of these model names, Eagle, Falcon, Charger, Bronco, happens to be the singular of a name of a sports team. The Eagles, the Falcons, the Chargers, the Broncos, the Indianapolis Colts, and of course the Daihatsu Colorado Rockies.