This classic riddle asks:
“What has keys but can’t open locks?”
At first, you may think of a keychain, a lockbox, or something related to doors. But the answer is something completely different.
The answer is:
A piano.
A piano has many keys, but none of them can open a lock.
That is what makes the riddle clever. The word “keys” immediately makes us think about doors and locks, but it can also refer to the black and white keys on a musical instrument.
A standard piano has 88 keys, each producing a different note when pressed.
So the correct answer is:
A piano.
Simple once you know it, but easy to overthink at first.
Did you guess it right away?


