MediumClassic
"There are two of us and we never touch each other. We work together all day and night. We take in the invisible and give back the invisible. What are we?"
Answer
Lungs
Explanation
The two lungs sit side by side separated by the heart and never actually touch. They work in constant rhythm, inhaling oxygen and exhaling carbon dioxide — both invisible.
This is a medium riddle in the Classic category — Time-honoured riddles passed down through generations.
Tags:bodyclassic
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More Classic Riddles
Keep going — other riddles in this category:
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- I travel the entire body every minute of the day. I carry life to every corner. I am red but I started darker. What am I?
- You use me every moment of your life yet you rarely think of me. I am invisible but essential. Take me away and nothing survives. What am I?
- A house with no doors, no windows, and a golden treasure inside. What am I?
- The more layers you remove, the more you weep. I am essential in cooking and hated when raw. What am I?
- Red on the outside, white on the inside, with seeds at the centre. A teacher's favourite, a doctor's enemy. What am I?