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Subj:.....Swimming Pool Puzzle (S563)
          From: Puzzles And Brain Teasers
          on 11/02/2007

Coin drawing from FlickR...
Source: http://www.apuzzlezone.com/adailypuzzle/11-02-07.html

An inflatable boat is floating in a swimming pool.
Which will raise the water level higher:
     Throwing a coin into the boat?
     Throwing a coin into the water?
 

THE SOLUTION

The boat. In the water the coin displaces its volume of water; in the boat it displaces its weight of water. Since coin metal is heavier than water, the coin weighs more than its corresponding volume of water does.

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