The belgian broadcaster have a eurovision quiz on their site. I gave it a go at expert level and I got 7/10. Considering the quiz is in Dutch and I had to guess what the questions actually said I am proud haha
http://www.een.be/programmas/eurovisiesongfestival/test-je-kennis
http://www.een.be/programmas/eurovisiesongfestival/test-je-kennis