In the depths of the ocean, I swim without fins, my heart beats to a rhythm, yet I’m not alive. What am I?
Category: Brain · Difficulty: expert
Hint: Think of machines that operate underwater.
Answer
A deep-sea vessel
Explanation
A submarine is a vessel that resembles fish in movement but is a mechanical creation, hence it doesn't have life.
This is a expert brain riddle — one of the harder riddles here. The answer is A deep-sea vessel.
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