Answer:
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What is it?
I am believed to be only one dimensional, and tinier than anything can be, and there are many who say that I am the basis of all that we see. What am I?
Slayer of regrets, old and new, sought by many, found by few.
What types of words are these: madam, civic, eye, level?
Weight in my belly, Trees on my back, I travel fast in my place, but feet is a feature I lack
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?