The best brain twisters [the most annoying in history]

1. Question: What is the surname of a pencil?

2. Question: What kind of line do gorillas hate the most?

3. Question: Which one is the worst among erasers, tiger skins, and lion skins?

4. Question: What are fabrics and paper afraid of?

5. Question: What would a kylin (Chinese unicorn) become if it went to the North Pole?

6. Question: Which historical figure is the most annoying / deserves criticism the most?

7. Question: From 1 to 9, which number is the hardest working, and which number is the laziest?