The context of the following conversation is Carson was good at finding new solutions, and Carson solved the riddle in a novel way.:
Carson says I can find a solution to your water issues..
The friend responds I hope you do. We need water flow to the town from the river..
Carson responds I can solve your riddle and help you once I see the river..
The friend responds There is the fork in the river..
Carson responds You need a dam placed right in this spot to divert the river to the town..
The friend responds You are a life saver. No more carrying water all the way from the river!.