Answer:
Before Mount Everest was discovered what was the highest mountain on Earth?
You use me between your head and your toes the more I work the thinner I grow.
Railroad Crossing, look out for the cars. Can you spell that, without any R's?
What goes all around the world but never leaves its corner?
I am always in front of you, but yet I am never here. What am I?
A little house full of meat, no door to go in and eat.