Two twins are born on the same day, at the same time, yet one is older than the other. How can this be?

Category: Brain Teasers · Difficulty: expert

Hint: Think about how time can vary based on location.

Answer

One was born on a plane flying east

Explanation

Due to time dilation, the twin on the plane experiences less time than the one on the ground.

This is a expert brain teasers riddle — one of the harder riddles here. The answer is One was born on a plane flying east.

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