To type out answer, spell it in initials; example: spell as a320 not airbus a320. There is a unique feature about the plane in every picture, so to help with your guessing.
I used pictures from the web but will not put the links up as then you can see the answers by going to these links. Spoiler: DON'T SCROLL DOWN UNLESS YOU HAVE ALREADY COMPLETED THE QUIZ!!! ANSWERS BELOW! 1. a380 2. b777 3. a330 4. b737 5. b787