> What is N.E.A.? Well, there are two of them and I belong to one but not the other.

Nuclear Energy Authority?
National Education Authority?

> What is I.R.A.? I have one, but want no part of the other.

Irish Republican Army

> What is T.N.T.? One is a bore the other a blast.

Trinitrotoluene
Transnational Transportation (Probably not one you're thinking of)

> Six correct is great.
> Five is good.
> Four is OK.
> Three or less means you ain't paying attention.
> Howard

winter"Not paying attention"mute