Nerd Core

3. The Enterprise D and Deep Space Nine's only Klingon officer
5. Someone who could answer a lot of these; alternatively, someone who bites the heads off live chickens as a side show act
6. Dressing up like your favorite characters, especially at a convention
9. The number of different Star Trek series (the same as the number of movies)
11. Televised maths and word game in the UK
12. Dr. Who time machine
13. The Gathering or pulling a rabbit out of a hat
14. A field of math with a latin name meaning "small pebble"
17. Rapidly and/or competitively solving a Rubik's cube is called speed________
18. The study of riddles and Will Shortz' college degree
20. An indoor place to star gaze

1. Princess Leia's adopted last name
2. These games like Dungeons & Dragons
3. It got a bad rap when I was in high school but is now rigorously fact-checked
4. Modern day treasure hunting using maps or GPS
7. A supergiant in the Orion constellation; don't say its name three times!
8. The hobby involves looking for and listening to avian species
10. Cult show where Mulder & Scully solve mysterious phenomena (or try to)
11. Jeopardy fans have been enjoying the Tournament of ________ recently
14. Battlestar Galactica robots who want to end the human race
15. Growing up as a kid, I was nerdy about conchology, the collection of these
16. God-like friend of Bilbo and Frodo Baggins
19. The abbreviation for a comic book movie franchise