Answer:
What is made of water but if you put it in water it will die?
I can wave my hands at you but I never say goodbye. You are always cool when with me even more so when I am high!
I have feathers that help me fly; with head and body but I'm not alive. Very skinny and a fixed length how far I go depends on your strength.
When you take away the whole from me there is always some left.
I am what bring things together. Without me everything you see would be a total mass or debris everywhere.
When is it bad luck to see a black cat?