Yes, yes, I know -- but are they creative? ;-)
China took the gold medal in 2008 the 49th International Mathematical Olympiad (July 10th to 22nd, 2008 - Madrid, Spain) link
Russians came in 2nd by very small margin. USA came in 3rd with the help of Asian students such as Alex Zhai who got a perfect score of 42, along with other two students from China. (Big surprise is where have the Indian students gone? Maybe in the SpellingBees? :-)
China also took the gold medal in the 39th International Physics Olympiad (2008) - Hanoi, Vietnam (28/07). All of its participants got Gold medals. Canada and US team members are also mostly Chinese. Taiwan is in second place. link
At 2008 the 40th Chemistry Olympiads held in Budapest, Hungary on July 21, 2008, all 4 Chinese students got gold medals, again China in 1st place.