[ziggytrix]

I find that answering the questions as honestly as possible, while it may not land the job, is best in the long run.

If you have to lie to get in, you'll have the lie the whole time you're there.

For example - on the weakness question - if you think it's a dumb question, come up with a joke answer. If they don't like your joke answer, or insist you answer seriously, just tell em "I'm very sorry, but I find that question too facetious to give a straight answer, can we move on?"