A young man woke up one morning under a bridge and checked his pocket.All he had left was less than ten dollars.He bought food and as he sat down to eat,an old man and two children came along.The old man asked him to help them with food as they had not eaten for almost a week.
The young man looked at the children—they were so weak that they could hardly stand.With the last bit of kindness he had,he gave them all the food.The old man and children thanked the young man and then gave him a dirty old coin.The young man said, "You need this coin more than I do—just keep it."The old man insisted that the young man put it in his pocket— and finally he did.
The old man and children sat down to eat and with no money,no job and no food,the young man went back under the bridge to lie down.As he was about to fall asleep,he saw an old newspaper on the ground.He picked it up and saw an advertisement inviting people with old coins to come to a store.He decided to go there with the dirty old coin the man gave him.
On arriving at the store.he gave the keeper the dirt y old coin.The keeper cried loudly.It was part of a Spanish treasure ship that had never been found.This same old col n was worth 67,000 dollars.The young man was pleased.He immediately sold the coin for money and then looked for the old man and little children to thank them and share the money.
By the time he got to where he left them eating.they had gone.The young man gave them his all and they gave him back with the coin.Helping others did good to himself as well.

根据短文内容,回答下列问题.
（1）Where did the young man stay for the night? ______
（2）Did the old man give the young man a newspaper to thank for his kindness? ______
（3）How did the young man learn about the advertisement for old coins? ______
（4）Why did the young man look for the old man and little children? ______
（5）What can you learn from the passage? ______