Cool！

　　2. What is never used until it's broken？

　　An egg.

　　3. What's a skeleton？（骨架）

　　It's a lot of bones without the person on them！

　　4. What is dark but made by light？

　　A shadow.

　　5. What can you break with only one word？

　　Silence.

　　6. What stays indoors no matter how many times you put it out？

　　The light.

　　7. A policeman saw a truck driver going the wrong way down a one-way street， but didn't give him a ticket. Why？

　　Because the truck driver was walking.

　　8. Where can milk be best stored？

　　In a cow.

　　9. Which can move faster， heat or cold？

　　Heat， because you can catch cold easily.

　　10. What's the hardest thing about learning skating？

　　The ice.