A few days ago, I had dinner at a friend's house and suddenly remembered these questions. Let's try them out without using pen and paper or setting up binary equations, etc.
**Question 1:** A straight road is 1000 meters long. If a tree is planted every 10 meters, how many trees can be planted?
**Question 2:** A circular road is 1000 meters long. If a tree is planted every 10 meters, how many trees can be planted?