Answer:
Usually green but can be brown. It's a great place to play or lie down. What is it?
It goes up and down the stairs without moving.
What occurs four times in every week, twice in every month, only once in a year but never in a day?
This is a dead giveaway
A person's greatest asset.
What sphinxes employ and players enjoy.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?