You are driving a truck (truck + man driving = 900kg) and in the back of the truck, is a group of birds (200kg)
you are the trainer of these birds and they will do ANYTHING you say, but they are ALWAYS inside the truck, they cannot go out
you are about to cross a bridge that has a maximum weight capacity of 1000kg
so you have to take the truck + the birds + you to the other side of the bridge
how do you make it through?
the answer is theoretical, and COULD not be practical
there you go, good luck solving it
