I run, but I never walk. I have a mouth, but I never talk. I have a bed, but I never lie.

What am I?

I don't have lungs, but I need air. I'm not alive, but I can grow. I don't have a mouth, but I am alergic to water.

What am I?

I'm black and white, black and white, black and white...

What am I?

A cowboy rode into town on Friday. He stayed the night, and left the next day on Friday.

How is this possible?