Answer:
Three little letters. A paradox to some. The worse that it is, the better it becomes.
What has a spot and is very bright, is sometimes, red, white, blue, yellow or green and is often blinding.
Long and think, red within, with a nail at the end.
A beacon from home to guide your way. It can be a lifesaver on a stormy day. What is it?
Thirty white horses on a red hill, First they champ, Then they stamp, Then they stand still.
What did the piece of wood say when he saw the screwdriver and screws approaching?