Answer:
What is that which, though black itself, enlightens the world without burning?
The older they are the less wrinkles they have.
Has no feet, but travels far. Is literate, but not a scholar. Has no mouth, yet clearly speaks.
What is seen in the middle of March and April that canβt be seen at the beginning or end of either month?
If I have it, I don't share it. If I share it, I don't have it. What is it?
What did the piece of wood say when he saw the screwdriver and screws approaching?