Difficult

I am the greatest teacher out of them all, but alas in the end I kill my pupils.

related riddles

Many have heard it, but nobody has ever seen it. It will not speak until spoken to. What is it?

I have a title and many pages I am a genteel of genteel descent I am a killer veteran of war I am a slave to my lord Pledged to his service.

It flies when it's on and floats coming off.