Fun Riddles

Question: There is a one story house. The walls are blue, the floor is pink, the stove and cupboards are red. What color are the stairs?

Question: Take my first and make it my last, now I happened in the past.

What am I?

Question: You can rest on my pad without touching the keys.
I will sing all month long as long as you pay your fees.

What am I?

Question: Before man discovered Mt. Everest, what was the tallest mountain in the world?

Question: I give you a family of three:

One is sits down, and will never get up.
The second eats as much as is given to him, yet is always hungry.
The third goes away and will never return.

What are they?