Answer:
I am known for my natural tuxedo and marching
Late afternoons I often bathe. I'll soak in water piping hot. My essence goes through. My see through clothes. Used up am I - I've gone to pot.
I repeat only the last word you say. The more I repeat, the softer I got. I cannot be seen but can be heard. What am I?
What has no beginning, end, or middle?
I am your most powerful weapon; I come before your eyes. I help you seek the truth, yet I often give you lies. What am I?
What an fill a room but takes up no space?