
Here’s a classic riddle about an everyday object: it is taken from a mine, locked inside wood and used by almost everyone.
The wording can make you imagine a treasure chest or a wooden box. But think of materials mined from the earth and put inside a small object used for writing.
Answer and explanation
Graphite, commonly called pencil lead. Graphite is mined from the earth and enclosed in the wooden body of a pencil, which people use for writing and drawing.


