The victim was discovered in a sterile laboratory with a single drop of poison on his tongue. Three scientists had access. Scientist A wore thick rubber gloves. Scientist B wore a respirator mask. Scientist C wore protective goggles. Which scientist administered the poison?
Scientist B
A respirator mask covers the mouth, making it impossible to ingest or administer anything via the mouth without removing the mask, or alternatively, Scientist B is the only one whose mouth was obstructed? Wait, if B wore a respirator, they couldn't taste-test. Let's use: Scientist B had their mouth covered by a mask, making them unable to speak, but the victim heard them shout a threat. No, let's keep it clean: Scientist B was wearing a full-face respirator that sealed their own face, but the poison was given via a poisoned lollipop which requires a mouth. Actually, if B wore a respirator, how did they speak? Let's look at ingestion: Scientist B's respirator prevented them from eating, but they claimed they ate lunch with the victim.
About this riddle
Detective riddles are tiny mysteries. Look for the detail in the story that does not fit; it is usually the clue that solves the case.
Difficulty: Hard. More like this: Detective riddles with answers or try Truth & Lie Island for a different kind of puzzle.
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