Saturday, February 13, 2010

Seeing through walls

Rich at Arbitrary Constant has posted a puzzle:

Name an ancient invention, which is still used in some parts of the world today, that allows people to see through walls.

I think I know what the answer is, although it requires quite a liberal interpretation of “some”.

1 comment:

rich_w said...

You're quite right - it's a bit of a liberal interpretation of 'some'! Hope you enjoy the weekly puzzles, though, and thanks for the link.