ANSWERS:
1. A coffin.

2. The child was born before 1776.

3. Mount Everest (it just hadn't been discovered).

4. Clara lives in the southern hemisphere.

5. World War I wasn't called "World War I" until World War II.

6. The word "and".

7. They fall in the same year every year. New Year's Day just arrives very early in the year and Christmas arrives very late in the same year.

8. One thousand nine hundred and ninety dollar bills are worth one dollar more than one thousand nine hundred and eighty-nine dollar bills.

9. Nine.

10. Only once, and then you are subtracting it from 20.

11. "One word"

12. Penguins live in the Antarctic.

13. Neither. The yolk of the egg is yellow.

14. You have to take a picture of a man with a camera, not with a wooden leg.

15. They were husband and wife.

16. Meat.

17. The third. Lions that haven't eaten in three years are dead.

18. The woman was a photographer. She shot a picture of her husband, developed it and hung it up to dry.

19. Charcoal

20. Sure you can: Yesterday, Today, and Tomorrow!

21. The letter "e," which is the most common letter in the English language, does not appear once in the long paragraph.