Answer:
Different lights do make me strange, thus into different sizes I will change
When you stop and look, you can always see me. If you try to touch, you cannot feel me. I cannot move, but as you near me, I will move away from you.
I have an eye but cannot see, You'll head inside when you see me.
I tremble at each breath of air, and yet can heaviest burdens bear.
What runs around all day. Then lies under the bed. With its tongue hanging out?
What is so fragile that saying its name breaks it?
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?