304 Puzzle

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Across
  1. 4. - Shape with five sides and angles.
  2. 6. - The tenth month of the year.
  3. 8. - Three-legged stand for supporting a camera.
  4. 9. Flying mammal
  5. 10. - Sea creature known for having eight arms.
  6. 13. - Being the only one of its kind.
  7. 14. - Figure with eight sides.
  8. 15. - Three-pronged spear, associated with a sea god.
  9. 17. - Mythical creature depicted with a single horn.
  10. 18. Likes to chase mice
  11. 20. - Happening every two weeks.
  12. 21. - Muscle with two heads, located at the front of the upper arm.
Down
  1. 1. - Glasses with lenses of two different strengths.
  2. 2. - Cycle with a single wheel.
  3. 3. - Group of three people or things.
  4. 5. - Two-wheeled mode of transportation.
  5. 7. Has a trunk
  6. 11. - To bring together as one.
  7. 12. - To divide into two equal parts.
  8. 13. - Standardized outfit worn by members of an organization.
  9. 16. - Three-sided polygon.
  10. 17. - Applicable everywhere or in all cases.
  11. 19. - Consisting of three parts.