What has keys but can’t open locks?

Riddle: What has keys but can’t open locks?

Answer: A piano (or a keyboard)

Riddle: What has keys but can’t open locks?

Hint: Think of music, not doors..

Tap to reveal
A piano (also acceptable: a computer keyboard)

Why this answer works
Pianos and keyboards have “keys,” but those keys make notes—not openings—so they can’t unlock anything.

Fun fact
A standard piano has 88 keys: 52 white and 36 black.

Popular variations
Many keys, opens no doors? → Piano
Keys you type on, no locks to turn? → Keyboard

Related riddles
What has strings but can’t tie a knot? → A guitar
What has a neck but no head? → A bottle

FAQ
Is “computer keyboard” valid?
Yes—its keys input characters, not open locks.

Why not “keychain”?
Because the keys on a keychain do open locks, which contradicts the riddle.