Logic Riddles

1234567891011121314151617181920
Across
  1. 3. Feed me and I live, yet give me a drink and I die.
  2. 6. What is as light as a feather, but even the world's strongest man couldn't hold it for more than a minute?
  3. 8. What occurs once in every minute, twice in every moment, yet never in a thousand years?
  4. 10. It is your possession and belongs to you. However, you use it very rarely. What is that?
  5. 11. What is at the end of a rainbow?
  6. 15. Which creature walks on four legs in the morning, two legs in the afternoon, and three legs in the evening?
  7. 16. Find Me! I start with 'P' and end with 'E', but I have thousands of letters. Who am I?
  8. 17. What animal can be created from the head of a lamb, the body of a pig, the hind quarters of a buffalo and the tail of a dragon?
  9. 18. What can travel around the world while staying in a corner?
  10. 20. Take off my skin - I won't cry, but you will! What am I?
Down
  1. 1. If you have me, you want to share me. If you share me, you haven't got me. What am I?
  2. 2. Which moves faster? Heat or Cold?
  3. 4. Which weighs more, a pound of feathers or a pound of bricks?
  4. 5. What kind of tree can you carry in your hand?
  5. 7. There was a green house. Inside the green house there was a white house. Inside the white house there was a red house. Inside the red house there were lots of babies. What is it?
  6. 9. What kind of room has no doors or windows?
  7. 12. What invention lets you look right through a wall?
  8. 13. What is always coming but never arrives?
  9. 14. What loses its head in the morning and gets it back at night?
  10. 19. Scientists are trying to find out what is between earth and heaven. Can you find me?