What can’t be seen, can’t be felt, can’t be heard, and can’t be smelt, but can kill you if ignored?
Category: Brain · Difficulty: medium
Hint: It's often a danger in homes.
Answer
Poisonous fumes
Explanation
Carbon monoxide is a colorless, odorless gas that is toxic.
This is a medium brain riddle — a moderate challenge for most people. The answer is Poisonous fumes.
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