What am I?

I have four wings, but cannot fly, I never laugh and never cry; on the same spot I'm always found, toiling away with little sound. What am I?

I have keys, but can't open doors. What am I?

I fly, yet I have no wings. I cry, yet I have no eyes. Darkness follows me; lower light I never see. What am I?

Never falling, often moving. Untouchable, but sometimes deadly. Another danger signalling, often seen but never staying. What am I?

Riddles and Answers