🟢 easywhat am-i

Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?

Illustration for riddle: Open me, and you can't see me without a mirror. Close me and you can't see me at all.

What am I?
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Common Wrong Answers

“Window”

A window can be opened and closed, but it does not require a mirror to see through it. You can see through a window without needing to reflect.

“Book”

A book can be opened and closed, but it doesn't relate to visibility in the same way. You can see the pages or text without a mirror.

“Door”

A door can also be opened and closed, but it does not pertain to visibility or reflection. You do not need a mirror to see through a door.