Answer:
I make everyone blind. You can't see me but I will always come back for you. What am I?
What type of house weighs the least?
My geometry is lost in the night to be found in daylight's break. The rigors of time have torn me to shreds, yet I stand to protect that which lies within. What am I?
I am an instrument capable of making numerous sounds but cannot be touched or seen. What am I?
I am a band that does not perform sing or act.
I will disappear every time you say my name.