Question

What has many keys but can’t open a single lock?
Key-chain
A piano
A lock
A locksmith

Answer 1

A piano has many keys but can’t open a single lock.

Explanation:

• Given - What has many keys but can’t open a single lock?

• "A Piano" is the correct answer of this riddle.

• Given question is a riddle which is interesting one. Hints are given in the riddle.

• In music, a "key" is a set of notes which corresponds to a certain scale. Music uses many different keys. Each key has its own unique character and sound.

• The piano is the musical instrument which is invented by Bartolomeo Cristofori in 1770. The Piano has many keys but it can't open a single lock.

• Hence, required answer is piano.

Answer 2

Answer:

Explanation:

A Piano