If you put a coin in an empty bottle and insert a cork into the neck of the bottle, how could you remove the coin without taking the cork out or breaking the bottle?
ok... first you heat up the bottle or a flame so the air within it expands. As a result of that, the cork should pop out on its own. Then you turn the bottle upside down. The coin will then fall out. (assuming gravity exist) ((haha... ok. lousy joke!)) I did not take out the cork. Neither did i break the bottle. :)
hmmm...
