Brain Teaser

I speak without a mouth and hear without ears. I have no body, but I come alive with the wind. What am I?

What has keys but can't open locks?

The more you take, the more you leave behind. What am I?

What has cities but no houses, forests but no trees, and rivers but no water?

I'm light as a feather, yet the strongest person can't hold me for much longer than a minute. What am I?

What Comes Once in a Minute, Twice in a Moment, But Never in a Thousand Years?

Tears Without Eyes

I can fly without wings, cry without eyes. Wherever I go, darkness follows me. What am I?

Runs But Never Walks:

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?