If you put a coin in a bottle and then stop the opening with a cork. how can you get the coin out of the bottle without pulling out the cork or breaking the bottle?

If you cannot break the bottle or pull out the cork in order to get the coin, then the only option is to make the cork no longer an obstacle. Which means, one must move the cork out of the way somehow. Since you cannot pull the cork out, one must push it in until it no longer obstructs the neck of the bottle. Then you can tip the bottle upside down and shake out the coin.