Thursday, September 06, 2007

Brain Teaser

clipped from

Ball in a Hole

A table tennis ball (= a ping pong ball) fell into a tight deep pipe - it is about 30 cm long, buried in concrete pavement, having firm metal bottom, only 1 cm of the pipe is above the ground so it can not be moved. The pipe was only a bit wider then the ball, so you can not use your hand.
How would you take it out, with no damage?

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