FACTUAL RIDDLES XXIX

1. Every U.S. state has at least one straight line in its border, except one. Which one?

2. Every part of the body can repair itself, except one. Which one?

3. In the famously misquoted line from Casablanca, "Play it again, Sam." , what song did Ilsa want Sam to play? 

Answers:

1. Hawaii

2. Teeth

3. As Time Goes By