A farmer is taking a fox， a chicken， and a bag of grain home. To get there， he must cross a river， but he’s only allowed to take one item across the bridge with them at a time. If the fox is left alone with the chicken， the fox will eat the chicken. If the chicken is left alone with the grain， the chicken will eat the grain. How can the farmer cross the river without any of his possessions being eaten？
　　Answer：
　　Take the chicken across and leave it on the other side. Then go back. Get the fox and bring it to the other side and take the chicken back with you. Take the grain to the other side and leave it there. Then go back and get the chicken.
　　译文：
　　一个农夫带着一只狐狸、一只小鸡和一袋米回家。他必须穿过一条河，但是每次只允许他带一件东西过河。如果留下狐狸和鸡，狐狸将吃掉小鸡；如果留下小鸡和米，小鸡会吃掉米。农夫怎样才能过河而又不损失任何一件财产呢？
　　答案：
　　带小鸡过河将它留在对岸，然后回来将狐狸带到对岸再把小鸡带回，再带米到对岸，然后回来带小鸡过河。

趣味英语：聪明的农夫