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.
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