Good Riddles

Question: You are driving and you are hungry and thirsty.On the road you find 2 doors.1 has food and 1 has water(drinkable).:Question:What door do you open first????

Question: Martha Speaks walked up to a fox and said, "what does the fox say?" What did the fox say?

Question: What is as big as an elephant but weighs nothing?

Question: What room does a ghost not need?

Question: What's a horse's favorite sport?