A window pane was cracked in a locked and empty office. No one was inside except the victim who was safe. How was the crack created?
Category: Mystery · Difficulty: medium
Hint: Consider environmental influences on glass
Answer
Temperature change caused fracture
Explanation
Rapid temperature changes can stress glass and cause cracks without any physical contact.
This is a medium mystery riddle — a moderate challenge for most people. The answer is Temperature change caused fracture.
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