A nickel can be five bucks?

Right.
The sawbuck's purpose is to hold long pieces, particularly logs, to prevent rolling.
Sawhorses are generally used in pairs.

Two grand is an archer. A whole Jeffrey, that's how much he bribed a prozzie to keep schtum.

Then Joey was just talking about a nickel he found inside the cupboard, and he was not actually talking about the five dollars he had promised to the stranger? And so, I don't really have to care about whether a nickel could mean five dollars or not?

Correct.

You got it.

Dunno, we have to call a specialist)

I never broke anything down to nickle and dime bags. You bought a lid...or you bought somewhere else.

Oh...and my hood, a lid was a "z"...not that partial.