What type of paper can you neither read nor write on?

Answer: Sandpaper

More Difficult Riddles with answers

More Difficult Riddles

What types of words are these: madam, civic, eye, level?
What was never scared but became petrified, can't make a bird but can make a bat, can't live in a house but would die to have one. What is it?
What weaves webs as they grow?
What word in the English language does the following: the first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?
What word in the English language uses all five vowels plus Y in alphabetical order, and uses each only once?
What word is a plural, but when you add an "S" to the end, it becomes singular?
What word looks the same upside down and backwards?
What zips through the sky with a tail of fire and dust. It could be an omen, its origin to discuss?
What's a place you have left but didn't enter?
What's as small as a mouse but guards a house like a lion?
What's the most romantic part about the ocean?
When can someone truthfully tell someone “well done” but think they did a bad job?