dundurn - I too am amazed at some poeple's lack of abliity with google, altavista, etc. I honestly think it's laziness - they would rather ask on here when it would be much simpler to visit google, etc.
The majority of the quizzes are advertisied on here - it's just a case of keeping your eyes peeled (or you can do a search for "quizzes" or "charity quizzes", etc.).
I also understand your last comment, but I think you are missing my point. The frustration comes from toiling long and hard myself to discover an answer, only to find the lazy types have simply asked for the answer on here. It's not a question of not looking at this site to see that answers have been given away - it's the frustration that some people get the answer with no effort at all - I suppose it's down to ethics/morals, etc. - too many people just don't have them any more. If I can't find an answer, I simply leave a blank space - I would get no pleasure from getting a question right if I had not discovered the answer from my own endeavours.