A man receives a message that changes meaning when repeated twice but never when said once. What kind of message is this?
Category: Mystery · Difficulty: hard
Hint: Consider how repetition affects sound patterns.
Answer
An audio signal containing a reversed recording
Explanation
When played twice, the reversed recording overlays and reveals hidden information.
This is a hard mystery riddle — a tricky one that takes a little thought. The answer is An audio signal containing a reversed recording.
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