The Hitchhiker's Guide to the Galaxy

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Across
  1. 5. A very intelligent and depressed robot
  2. 6. Old man that originally designed Norway
  3. 9. Planet that was destroyed to make a bypass
  4. 11. Animal that was called into existence several miles above an alien planet by some improbable chance
  5. 16. The President of the Galaxy: Zaphod ______
  6. 17. The only woman to escape from Earth before it was destroyed
  7. 18. A non-hitchhiker
  8. 20. Alien species that writes terrible poetry
Down
  1. 1. Something every hitchhiker needs
  2. 2. High-tech spaceship: ___ of Gold
  3. 3. Legendary planet that manufactures planets
  4. 4. A local bulldozer driver that happened to be a descendant of Genghis Khan
  5. 7. The gang is hungry, so they decide to go to the ______ at the End of the Universe
  6. 8. New high-tech and risky method of space travel: Infinite _____ Drive
  7. 10. Type of fish that translates any language when put in someone's ear
  8. 12. The name of the enthusiastic shipboard computer
  9. 13. A hungover man that lays in the mud in front of his house
  10. 14. The answer to Life, the Universe, and Everything
  11. 15. Secretly extremely intelligent beings on Earth
  12. 19. A hitchhiker from a small planet in the vicinity of Betelgeuse