(CNN)It was 3:30 in the morning when Robert Alan Black was escorted into Khalifa jail.

An American in Abu Dhabi, he found himself frightened even though the other prisoners were sleeping. Movie scenes from "Midnight Express" and "Brubaker" swirled through his head.

He sat at a table in the common area, waiting for the others to wake, not knowing what the reaction would be to his presence.

Black, who has a degree in architecture, three master's degrees and a doctorate in educational psychology, was in Abu Dhabi, the capital of United Arab Emirates, for October's Creative Thinkers Conference. He was to present a workshop and emcee the event.

On a Tuesday morning, the 70-year-old got up early to take a walk in the neighborhoods near his hotel. An avid photographer, Black took his camera to snap photos of houses and a couple of the mosques he passed.

When he left the second mosque, he was approached by a man in uniform. He motioned Black to get into a camouflaged truck.

"I had no idea what he wanted," Black said, "but never felt threatened so I got in."

He was driven a short distance to a building with a sign out front that read "Reception." He waited about an hour before he was guided back outside and told, "Do not photograph security areas."

Black asked for clarification, but he was waved away with no further explanation, he said.

He decided to continue his walk. A few blocks away, he came upon a sign on a lamppost that said in English, "Photography Forbidden." Thinking a photo of the sign would make for a novel Facebook post, he snapped an image.

1. Name a film Black thought of.
2. And the other?
3. Where was Black taken?
4. When?
5. How many mosques did he visit?
6. What was he forbidden to take pictures of?
7. And what kind of areas?
8. What kind of vehicle did Black board?
9. Who bid him to board?
10. Did Black feel like getting in the vehicle was dangerous?
11. True or False: The first sign mentioned said "Reception."
12. Did Black take a picture of the second sign?
13. Why?
14. How old is Black?
15. What is his nationality?
16. Is he well-educated?
17. How many master's degrees does he hold?
18. What is he a Doctor of?
19. Why was he in Abu Dhabi?
20. And for what conference?

Numbered answers:
1. Midnight Express
2. Brubaker
3. A Khalifa jail
4. 3:30 in the morning
5. a couple
6. A Sign
7. security areas."
8. a camouflaged truck
9. a man in uniform
10. No
11. true
12. Yes
13. It would make a novel Facebook post
14. 70
15. American
16. Yes
17. Three
18. educational psychology
19. for taking photographs
20. October's Creative Thinkers Conference