What do U2 and Abraham Lincoln have in common?

There's usually a theme in each week's Head2Head trivia. It might be movies, sports, music, literature ... well, you get the idea.

Sometimes, though, the person doing the trivia is (ahem) lazy, which means a kind of hodgepodge of random questions. This is one of those times.

Last week's trivia champ and out-of-towner, Chris Dixon, is going up against Gina Brooks, who's planning a wedding.

QUESTION

1. What is the only metal that is liquid at room temp?

2. Name the only tree that grows in the Mojave desert.

3. What is the only letter in the alphabet that does not appear in the name of any state in the U.S?

4. Name the only dog breed whose testimony is admissible in court.

5. What is the only food that doesn't spoil?

6. What is the only continent without reptiles or snakes?

7. Who was the only U.S. President to be granted a patent?

8. What is the only repealed amendment to the U.S. Constitution?

9. What are the only parts of the human body that can't repair themselves?

10. What is the only planet not named for a pagan god?

CHRIS' ANSWERS

1. Mercury.

2. Joshua tree like U2's album.

3. X.

4. How 'bout a German Shepherd?

5. Dried fruit.

6. It's got to be Antartica.

7. Jefferson.

8. The drinking law.

9. Enamel. I mean teeth.

10. The Earth.

GINA'S ANSWERS

1. I pretty much sucked at chemistry so I'm just gonna skip this one.

2. Since it's a desert, my answer is cactus.

3. V. No, Z. Crap, Arizona. I don't know.

4. Bloodhounds?

5. Chocolate.

6. Is Greenland a continent?

7. Benjamin Franklin.

8. Not having the right to vote.

9. Teeth?

10. Uranus.

CONCLUSION

Dixon didn't have to work too hard to make it two in a row so he'll be back for his third time. Oh, and it turns out there was a theme in this week's trivia. The word "only."

CORRECT ANSWERS

1. Mercury

2. Joshua

3. Q

4. Bloodhound

5. Honey

6. Antartica

7. Abraham Lincoln

8. Prohibition of alcohol

9. Teeth

10. Earth