A box is found locked with a complex mechanism. Inside is a clue to a murder. How did the killer get it open?

Category: Mystery · Difficulty: hard

Hint: Knowledge can be a powerful tool.

Answer

They solved the mechanism

Explanation

The killer knew how to unlock it, perhaps having seen it before.

This is a hard mystery riddle — a tricky one that takes a little thought. The answer is They solved the mechanism.

More Mystery riddles

All Mystery riddles · Riddles with answers · Home