Answer:
I always run but never walk, often murmur, never talk, have a bed but never sleep, have a mouth but never eat. Who am I?
Snow White was friendly with seven of them
Poorly behaved children often find themselves sitting in these.
What kind of room has no doors or windows?
Written on with words of white, Has the color of the night, Is the teacher's best delight, And a student's daily fright
I appear in the morning. But am always there. You can never see me. Though I am everywhere. By night I am gone, though I sometimes never was. Nothing can defeat me. But I am easily gone.