There are 26 different sports in 302 events see related link under sports
Yes. Vietnam is competing at the 2012 Summer Olympics in London and has 18 athletes competing in 11 sports
Pakistan sent a 21-member team to the London Olympics competing in four sports.
The country was represented by 184 athletes, competing in sixteen sports.
7 Zimbabwean Athletes are competing in 4 sports
Yes, American Samoa will be competing in the 2012 London Olympics.
Pakistan sent a 21-member team to the London Olympics competing in four sports.
There 184 Athletes are competing in 16 sports
Ireland is competing at the 2012 Summer Olympics in London, United Kingdom with 66 athletes in 14 sports
The country was represented by 184 athletes, competing in sixteen sports.
Wikipedia lists Germany as having 391 athletes competing in the 2012 Summer Olympics in London
Australia, represented by a team of 410 athletes, is competing at the 2012 Summer Olympics in London, United Kingdom in 23 sports
Over 10,000 athletes from 204 countries will be competing in the 302 events for the 2012 London Summer Olympics