Answer:
I go up and down at the same time. Up towards to sky and down towards the ground. What am I?
If you lose me, you may cause people around you to lose me too. What am I?
Never ahead, ever behind, yet flying swiftly past; for a child, I last forever; for an adult, I'm gone too fast. What am I?
I am the type of room you cannot enter or leave. Raise from the ground below I could be poisonous or a delicious treat.
I have four fingers and a thumb, but I'm not living. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?