Answer:
What instrument can you hear but never see?
What calls for help, when written in capital letters, is the same forwards, backwards and upside down?
White and thin, red within, with a nail at the end. What is it?
What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?
Cold head and feetอพ Round as a ballอพ Always turning around itself.
I am a room that has a roof but no walls. What am I?