bob bundy wrote:

or can anyone explain why there are not lots of solutions:

There are at most 4! = 24 solutions and 24 is not a lot, is it?

Well, this particular puzzle definitely does not have a unique solution. More clues are needed.

I am always looking for sites with intelligent puzzles. Invariably, they all have stuff like. Notice that no question is even asked, but we should assume that we are meant to assign a vehicle to each person. We should also expect there to be only one solution. In order for this to be the case, we must read the clues from another point of view and get information that is the opposite of what we would expect. "John gets seasick." could be interpreted as, "John is prone to seasickness and therefore does not go by ship." or it could be interpreted as, "John gets seasick on this particular voyage, therefore he must be on the ship." Similarly, we can assume that Mr. Jones hates flying because he is required to do it all the time, including this trip. That means Rachel is on the train, Cindy is in a rented car, John is unhappily sailing on the ship, and Mr. Jones is not happy about being on the plane. This is the only answer I can find that is remotely satisfying, but it is still a very poor logic puzzle.