Answer:
There is an ancient invention. Still used in some parts of the world today. That allows people to see through walls.
I'm full of holes, yet I'm full of water.
Gets rid of bad ones, short and tall. Tightens when used, one size fits all.
If you happen to wear one of these warm garments around, you might get doused in red paint.
Lighter than what I am made of, More of me is hidden Than is seen.
What covers its face with its hands, speaks no language, yet most known what it's saying?