Lateral Thinking : Solution
There are many possible ways to approach solving a lateral thinking puzzle. You can look for ambiguities or catches in the wording that mean something that appears obvious is not actually the case and look to exploit this fact to solve the puzzle.More often however, it will be a case that there is an assumption implicit in the text which you will naturally follow, it is only by finding out what this assumption is that you are able to solve the puzzle.
If you take the first route to solving this puzzle for instance, you might realise that only one car journey is made and therefore say that you take them on the train or use another vehicle and so forth.
The standard answer however challenges the assumption that you implicitly make that it will be you driving the car, and therefore it is not possible for your car to make the journey that takes both people home. However, the standard answer has it that you get out of the car, enabling there to still be two passengers in the car - and the couple drive themselves home. You then wait with the woman for her bus to come and escort her to the hospital.