What Am I Riddles

Question: Without me, nothing exists. What am I?

Question: I am there !!! but I was!!!

Question: Voiceless it cries,
Wingless flutters,
Toothless bites,
Mouthless mutters.

What is it?

Question: You wait for it. It cracks, stays for a moment, and then vanishes before your eyes. What is it?

Question: I am a righter of wrongs, I hang down from above, I am coiled like a snake, I am tight as a glove. What am I?