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Code Quiz

All the questions in this quiz are about codes!


  1. What does the acronym ZIP stand for in the American Zip Code?
  2. Which country's international dialing code is 33?
  3. What was the first name of Mr. Morse, the American inventor of Morse code?
  4. What was the name of the English country house and estate in Milton Keynes that became the centre of Allied code-breaking during World War Two?
  5. During World War Two what was the German codename for the invasion of the Soviet Union?
  6. In 1974, the first supermarket product to be scanned using a product bar code was a 10-pack of what?

  7. What is the airport code for Los Angeles International Airport?
  8. In computing, what does the acronym BASIC stand for?
  9. Name the author of the 2003 best-selling novel The Da Vinci Code?
  10. What is the name of the system of conveying information at a distance by means of hand-held flags?
  11. Which landmark has the post code TR19 7AA?
  12. The 0161 prefix is the area phone code associated with which British city?
  13. In Morse code, the letter "E" is represented by what?
  14. What was the codename for the atomic bomb project centered in New Mexico in the early 1940s?
  15. Which code would you associate with David Prowse?
  16. What cipher device that looked like a typewriter was employed extensively by Nazi Germany during World War II?
  17. Who had the codename "Rawhide"?
  18. What word represents the letter 'K' in the NATO phonetic alphabet?
  19. What was Nazi Germany's code name for the proposed invasion of England?
  20. Which code representing computer processor instructions uses a two-symbol system which is often "0" and "1"?
  21. In computer coding what does CSS stand for?


  1. Zone Improvement Plan
  2. France
  3. Samuel
  4. Bletchley Park
  5. Operation Barbarossa
  6. Chewing gum (Wrigley's chewing gum)
  7. LAX
  8. Beginners' All-purpose Symbolic Instruction Code
  9. Dan Brown
  10. Semaphore
  11. Land's End
  12. Manchester
  13. A single dot
  14. The Manhattan Project
  15. The Green Cross Code
  16. Enigma machine

  17. Ronald Reagan (Secret Service code name)
  18. Kilo
  19. Operation Sea Lion
  20. Binary code
  21. Cascading Style Sheets