Answer:
who do you think you know but sometimes you don't
What goes through a door but never goes in. And never comes out?
Stealthy as a shadow in the dead of night, cunning but affectionate if given a bite. Never owned but often loved. At my sport considered cruel, but that's because you never know me at all.
What English word retains the same pronunciation, even after you take away four of its five letters?
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What is it?
What did the piece of wood say when he saw the screwdriver and screws approaching?