What I mean with the "answer" website are like those websites where anyone can post a question while wait for other visitors to answer it, like what Yahoo have - (okay! like answers.yahoo.com).

I always encounter a webpage of this website where the content is nothing but a one-liner question - usually an interesting question, but have no answer. So, this webpage is essentially worthless - no value to anyone who visit that webpage. What is funny is that it has a large banner of adsense ad in it. Isn't it a violation of the adsense TOS? If this kind of practice is allowed by Google, could I simply make a website containing every possible question in the world per page, and put an adsense ad in it. What is your view on this?

Thanks.