I’m measured in billions of years, yet my exact duration is a mystery. What am I?
Category: Science · Difficulty: medium
Hint: Think about cosmic timelines.
Answer
The age of the universe
Explanation
The age of the universe refers to how long it has existed since the Big Bang, estimated to be around 13.8 billion years.
This is a medium science riddle — a moderate challenge for most people. The answer is The age of the universe.
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