Answer:
I am the greatest teacher out of them all, but alas in the end I kill my pupils.
I wear a red robe, with staff in hand, and a stone in my throat.
What is the smallest sentence with all letters in the English alphabets?
Iron roof, glass walls, burns and burns and never falls.
I'm white, I'm round, but not always around. Sometimes you see me, sometimes you don't.
What covers its face with its hands, speaks no language, yet most known what it's saying?