Answer:
I can speak with my hard metal tongue. But I cannot breathe, for I have no lung. What am I?
What is harder to catch the faster you run?
It flies around all day but never goes anywhere? What is it?
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
From house to house I go, sometimes narrow, sometimes wide. Whether there's rain or snow, I always stay outside. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?