What Am I Riddles

I can be long or short. I can be grown or bought. I can be painted or left bare. I can be round or square. What am I?

I can be cracked, made, told and played. What am I?

I am gentle enough to soothe your skin, light enough to fly in the sky, strong enough to crack rocks. What am I?

I can fly but I have no wings. I can cry but I have no eyes. Wherever I go, darkness follows me. What am I?