Which country are these hockey fans from?

What is the longest event in an athletics competition?

What's the famous cycling race in the world?

In which city is the biggest football stadium in Europe?

Which country is this judo champion is from?

Which of these is the correct size for a golf ball?

How many players are there in a doubles tennis match?

How long is the Olympic swimming pool?

How many players are there in a beach volleyball team?