I have a foot, yet no legs. I have a house yet no furniture. I choose to be on the move, but moving isn't so easy. What am I?

No one can see me, hear me, feel me, or smell me. Yet, if you tell me... I can do all those things and more. Every person, animal, amphibian (or more) needs me. Without me my wielder will die. I can only be touched when my bearer is dead, and I can only be used if my bearer lives. You can create me cooperatively, but cannot create me manually. What am I?

Salmon need me. Gravity uses me. At a distance I look gorgeous, but get too close and I become hazardous. If you do see me, I am usually pretty tall. What am I?

If I eat, I would live. If I breathe, I would also live. However, if I drink, I would die. What Am I?

I get wet when drying. I get dirty when wiping. 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?

We are little airy creatures, all of different voice and features, one of us in glass is set. One of us you'll find in jet. Another you may see in tin. And the fourth a box within. If the fifth you should pursue, it can never fly from you. 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?

I am a seed with three letters in my name. Take away the last two and I still sound the same. What am I?

A man in uniform stands on a beach of a tropical island. He takes out a cigarette, lights it, and begins to smoke. He takes out the letter and begins reading it. The cigarette burns down between his fingers, but he doesn't throw it away. He cries, but not out of physical pain. Why? HINT: DISEASE