| 554 | Entertainment: Video Games | Multiple Choice | Easy | Half-Life by Valve uses the GoldSrc game engine, which is a highly modified version of what engine? |
| 556 | Entertainment: Film | True / False | Easy | Matt Damon played an astronaut stranded on an extraterrestrial planet in both of the movies Interstellar and The Martian. |
| 557 | History | Multiple Choice | Medium | What was the capital of South Vietnam before the Vietnam War? |
| 558 | Entertainment: Video Games | Multiple Choice | Easy | Who is the main character of the game Half-Life: Opposing Force? |