1. Why it is cold?
2. Why motorbike does not have pedal? (like the one on my bike)
3. Why motorcycle has two wheels, and car has four wheels?
4. Why it is dark outside (at night)?
5. Where is the Sun going?
6. Why thunderstorm?
7. Why girls don't like boom boom game (the action shooting computer game)?
8. Why girls don't like scary stuff?
9. Why boy stronger than girl?
10. Why soldier wear hat?
11. Why solder want to wear uniform?
12. Why policeman wear hat?
13. Why smoke coming out of (the back of a jet) airplane?
14. Why truck doesn't fly?
15. Why we doesn't fly?