Problem: In which country is Potsdam, the site of the famous conference after World War II?
Answer: germany

Problem: On whose show did Elvis Presley appear when 82% of the TV audience tuned in?
Answer: ed sullivan

Problem: When women were first given the vote in 1918 how old did they have to be to receive it?
Answer: 30

Problem: What is London's biggest airport called?
Answer:
heathrow