Answer:
What is an astronaut’s favorite key on a keyboard?
I can run but not walk. Wherever I go thought follows close behind.
If you have me you want to share me. Once you share me you won’t have me.
Draw fire or fill me; I'm still empty.
I fly away as soon as you set me loose. People around you may slowly move away once they sense my presence.
I flow from the Homer’s mouth when he sees doughnuts.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic