The Internet search engine Ask Jeeves specializes in answering the toughest, most obscure questions Web surfers can throw at it.

But even Jeeves can get stumped sometimes and it has now compiled what it calls the top 10 unanswerable questions of the past decade.

The list is based on more than 1 billion queries to the site since it began in 2000 and includes both the weighty and the trivial. Even TV mob boss Tony Soprano made the list.

The list of "unanswerables" is part of a new promotion to celebrate the search engine and its trademark butler's 10-year anniversary.

But ask Jeeves said it was also launching the page in hopes that people will be able to shed some light on the tricky questions.

Jeeves' Unanswerables

1. What is the meaning of life?

2. Is there a God?

3. Do blondes have more fun?

4. What is the best diet?

5. Is there anybody out there?

6. Who is the most famous person in the world?

7. What is love?

8. What is the secret to happiness?

9. Did Tony Soprano die?

10. How long will I live?