E.I. Gordon translated ancient Sumerian cuneiform tablets that dated back to approximately 2500 B.C. Among that ancient writing was a riddle, which is believed to be the world’s oldest brain teaser. Can you solve this riddle that has perplexed people for 4,500 years?

A house based on a foundation like the skies

A house one has covered with a veil like a secret box

A house set on a base like a goose

One enters it blind,

Leaves it seeing.

This is a shortened version:

There is a house. One enters it blind and comes out seeing. What is it?

Do you know the answer? Scroll down to see if you are right.

Answer: a school.

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