One man can do each

azzI think (b) and (c) correspond to (1)

Correct. But (a) can also correspond to (1).

azz(a) corresponds to (2)

It can, but it can correspond to (1) as well.

azzI have a feeling (2) might be ambiguous.

I'm puzzled. I think you mean that (a) is ambiguous, which it is. You're focusing on

Thank you very much Jim.

Yes, you are right. I meant to say (b) is ambiguous. Is it?
Apparently (c) is not ambiguous and (a) is.

How about these

d. Each of these tasks can be done by one man.
e. Every one of these tasks can be done by one man.
f. All of these

azzI meant to say (b) is ambiguous. Is it?

I don't see the ambiguity if it's there, so I'd say no.

azzWhich of the sentences (d), (e) and (f) mean (1), and which mean (2)?

(d) (e) (f) Neither.
1. One man may not be enough. If there are three tasks, a different man may be needed for each task.
2. It's possible that

azz all the things that need to be need

What is the meaning of the "need to be need"?
Is there any reason to complicate such an exercise? Is it a logic or grammar test, or both?

AnonymousWhat is the meaning of the "need to be need"?

azz obviously meant 'need to be done', so I ignored that little typographical error.

AnonymousIs it a logic or grammar test, or both?

I think it's the beginning of a computer system that can understand English.

Thanks for the reply. It's something wrong with the editor today; the link doesn't seem to work. The posts I've sent differ from those which have been displayed on the forum. In 2000 there was a millennium bug, called Y2K, which was supposed to disrupt the world computer network, so it may be an echo of that now in the last day of 2014.

Anonymousthe link doesn't seem to work

If it just says 'link', the system hasn't located and verified it yet. Wait till it shows up for real. I just tried it and it worked for me.

CJ

Thank you very much Jim,

The link worked for me as well. No problem.