a duck, a fox, and a bag of grain and a boat for crossing

[midas]

so you have a duck, a fox, and a bag of grain and you have a boat for crossing a river. You can only take 1 in the boat with you and nothing can be eaten, so you cant leave the fox and the duck toghether while you take the bag, ect ect. How do you do it?

[stapel_eliz]

This is an old puzzler, and it comes in many different versions.

For a good explanation, try this Wikipedia article.

Have fun!