brigitte.gad - I took a wild guess that you were doing the same quiz as me. I thought that you asking 28 questions out of a section of 40 meant it was probably the same quiz.
It looks like some other people have given you a few sites to use, but it really is just a matter of doing the hard work yourself. It's amazing how much satisfaction you get when you find an answer by yourself. It can get very frustrating if you spend ages looking and finally find the answer yourself and then find someone has asked on here (or elsewhere) and the answer has been given away to everyone.
I just fail to see what enjoyment anyone can get from getting someone else to give them the answers on a plate - perhaps you can tell me from your perspective? The charity certainly doesn't get any more money if you have 130 answers or any less than that - so I just can't see the point. If you can't find an answer yourself, have a guess or leave a blank space - I can promise you it's quite painless - and, of course, you don't ruin a really great quiz.