2012 London Olympics quiz: Are you ready for a gold medal?

The iconic Tower Bridge over the Thames in central London, decorated with Olympic rings the 2012 Summer Olympics.
((AP Photo/Lefteris Pitarakis) )

As more than 14,000 athletes from an estimated 205 countries compete at this summer’s Olympics in London, from July 27 to Aug. 12, it’s time for you to test your Olympic aptitude by taking this 25-question quiz. If you get 20 or more right, consider yourself medal-worthy.

- Ross Atkin