What am I riddles

I sleep when you are awake, I am awake when you fall asleep. I can fly but no feathers to aid my flight. What am I?

I have keys but no locks. I have a space but no room. You can enter, but can't go outside. What am I?

When you don't have me, you want me, but when you do have me, you want to give me away. What am I?

I hiss. I can be poisonous. I am long. I have a forked tongue. What am I?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth I am dissolved into air. What am I?

I have no life, but I can die, what am I?

I am small. I can be scary. I have eight legs. I spin a web. What am I?

I have billions of eyes, yet i live in darkness. I have millions of ears, yet only four lobes. I have no muscle, yet i rule two hemispheres. What am I?

I have seas without water. I have forests without wood. I have deserts without sand. I have houses with no brick. What am I?

I am alive without breath and cold as death. I am never thirsty but always drinking. What am I?