Answer:
I am a word. I become longer when the third letter is removed. What am I?
I have two body parts but am used to measure length. What am I?
I move without wings between silken strings. I leave as you find my substance behind
I am the same written forward backward and upside down.
I am what no man ever yet did see, which never was, but always is to be. What am I?
What language does a billboard speak?