A dying old man wants to divide his entire land between his only two sons. Since his only wish is to treat them as equal as both of them have been too good to him, he wants to divide his land equally between them.
The problem is that the land is significantly irregular in shape and thus there is no choice of cutting them in two equal halves.
How can he divide the land in a manner that both of his sons will be happy?
Simple. All he need to do is ask one of his son to divide the land in two part and tell him that the other son will have the choice of selecting one of those two halves. In this way both children will be happy.