Answer:
To cross the water I'm the way. For water I'm above I touch it not and truth to say I neither swim nor move.
Whoever made me doesn't want me. Whoever bought me doesn't need me. Whoever uses me doesn't know me. What am I?
I am the ultimate killing machine used not once but TWICE I can be made by humans.
Iām hard as a rock and as light as a feather. Iām passed on to one another. Poor people need me and rich people have me.
When you are inside me you will be encouraged to slam other cars.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.