Answer:
What type of dress can never be worn?
I'm a word that is not even strange. What am I?
I am full of holes but still hold water. What am I?
Forward I am heavy backward I am not. 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?
What language does a billboard speak?