This week's Friday Brain-teaser from xrefer tests your knowledge of Air Travel. Answers here

1. Which city has airports named Orly and Charles De Gaulle?
2. Which airport got its name from a row of cottages at the western edge of Hounslow Heath?
3. Qantas or QANTAS is an airline in which country?
4. Which American city has airports named O'Hare International and Midway?
5. Sabena is the airline of which country?
6. What nationality is the airline called Koninklijke Luchtvaart Maatschappij?
7. TWA is an abbreviation of the name of which airline?
8. The USSR's government-owned airline was once the world's largest. What was it called?
9. In 1969, which Italian airline became the first European airline to operate an all-jet fleet?
10. CX is the airline code for which airline company?