Answer:
who do you think you know but sometimes you don't
Man walks over, and man swims under. In times of war, it can be burned asunder. What is it?
As a whole, I am both safe and secure. Behead me, I become a place of meeting. Behead me again, I am the partner of ready. Restore me, I become the domain of beasts.
A shimmering field that reaches far. Yet it has no tracks, And is crossed without paths.
What is weightless but it needs two person to hold it?
What do angels sing in the shower?