Answer:
What can get you there in eco style, pushed by your legs mile after mile?
A small hill with seven holes.
What was the first man made invention that could see through a wall?
What cleans as it gets dirty only to get clean the more you use it?
What is at the end of every rainbow?
If all Wibbles are Criggles, all Borkins are Kwumblins, no Hoggles are Borkins, and all Criggles are Borkins, is it true that all Borkins are Criggles?