From George

ANSWERS:

1. 39 years
2. 4187 miles
3. 13 countries
4. 39 books
5. 2160 miles
6. 390,000 pounds
7. 1756
8. 645 days
9. 5959 miles
10. 36,198 feet

If you estimated accurately, then at least nine out of these ten answers came within your LOW and HIGH marks.  Most people are overconfident, and got maybe 5 or 6 answers right.

We don't estimate terribly well, but we think we do.  And, we don't take advantage of the leniency that's given us when we can estimate as freely as we want.

Interesting, huh?