From the information given, we know that Paraguay does not have a coast. This means that it is located in the center of one of the continents.
We are then informed that Paraguay's neighbors are Bolivia, Brazil, and Argentina. This tells us that Paraguay is a South American nation that is location closer to the southern end of the continent than the northern end.
Even without seeing the exact location on a map, we have a fairly good idea of the geographical location of Paraguay.
