Could I put in a plea that this thread is stopped. In past years I and other teachers have set it for our 6th form students as a useful and entertaining exercise; but this was destroyed by all the answers being posted here for all to see. It is not even necessary to be a subscriber. There is surely some way of setting up a site where answers could be swapped which would not allow for someone without a jot of literary knowledge copying out the answers and scooping the prize on a subsequent lottery.