Answer:
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.
I'm white and used for cutting and grinding. When I'm damaged, humans usually remove or fill me. For most animals I am a useful tool. What am I?
I moan I groan I chase after you. I never seem to rest. Time’s up for you.
What's full of holes but still holds water?
Light hides me and darkness kills me. What am I?
What flies without wings?
What am I?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic