Answer:
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
Never resting, never still. Moving silently from hill to hill. It does not walk, run or trot. All is cool where it is not. What is it?
I have a face and two hands, but I have no arms or legs. Six plus seven is one. What am I?
What language does a billboard speak?
I lose my head in the morning and regain it back at night. What am I?
It rows quickly with four oars but never comes out from under his own roof. What is it?