Yes, Serbia won the Eurovision Song Contest in 2007.
Not as of 2011.
By chance, maybe.
2011 - Azerbaijan 2010 - Germany 2009 - Norway 2008 - Russia 2007 - Serbia 2006 - Finland
No, Lithuania has never won the Eurovision Song Contest. Fun Fact: The first time Lithuania entered the Eurovision Song Contest was is 1994.
Russia
Belgrade, Serbia
Sonia represented the United Kingdom at the Eurovision Song Contest in 1993. She finished in 2nd place behind Niamh Kavanagh of Ireland.
Marija Serifovic
Serbia hosted the Eurovision Song Contest 2008 in the capital city of Belgrade.
Poland are yet to win at the Eurovision Song Contest.
I think they got a medal for winning the Eurovision song contest
Milan Stanković represented Serbia in 2010 with the song "Ovo Je Balkan".