Answer:
What has six faces and twenty-one eyes?
My sides are firmly laced about, Yet nothing is withinΝΎ You'll think my head is strange indeed, Being nothing else but skin.
To unravel me you need a simple key, no key that was made by locksmith's hand. But a key that only I will understand.
A hill full, a hole full, yet you cannot catch a bowl full.
who do you think you know but sometimes you don't
What did the piece of wood say when he saw the screwdriver and screws approaching?