yes
Yes. Vietnam is competing at the 2012 Summer Olympics in London and has 18 athletes competing in 11 sports
Handball was the only sport for which the United States had no representation at the 2012 Summer Olympics.
85
Wikipedia lists Germany as having 391 athletes competing in the 2012 Summer Olympics in London
104 athletes are competing in the Olympics games for Brazil 2012
Over 10,000 athletes from 204 countries will be competing in the 302 events for the 2012 London Summer Olympics
Yes, Russia are competing in the 2012 Summer Olympics in London.
104 athletes
There are a total of 380 competitors in 23 sports competing for China at the 2012 Summer Olympics.
Wikipedia lists Italy as having 284 athletes competing in the 2012 Summer Olympic Games
Yes, Swaziland will be competing in the 2012 Olympics.