Answer:
I am a certain five-letter word and become shorter when you add two letters to me. What am I?
Adored by few, feared and hated by many. Mistress of the entire universal reason, master in the art of numbers. Some may have solved many of my mysteries, but there are still many of them to find. What am I?
I am a bow that can never be tied or broken but can disappear. What am I?
I break down buildings, I crumble mountains but you can't see me. What am I?
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?
What language does a billboard speak?