If it fell in, it should be able to get out the same way. Therefore
fill your water bottle and empty it into the pipe... Right? I mean,
that makes the paddle and shoe-laces rather redundant, I guess, but oh
well.
> * *
>
> **
> *Your last good ping-pong ball fell down into a narrow metal pipe imbedded
> in concrete one foot deep.How can you get it out undamaged, if all the tools
> you have are your tennis paddle, your shoe-laces, and your plastic water
> bottle, which does not fit into the pipe?
> *
>
> *Update Your Answers at* : Click
> Here<
http://dailybrainteaser.blogspot.com/2011/05/ball-hole-science-puzzle...>