India, June 1 -- Although it is not really necessary, I often check if the numbers I bring to the fictional setting of my puzzles are realistic or not. For example, what is the typical range of speeds in a motorcycle race? Had I made the participants too fast? So I checked and was astounded to find that speeds can exceed 350 kph in the premier class.

The speeds you will determine in the puzzle below are far below that range. We can safely assume that the participants are amateur motorcyclists. That said, the speeds are still far above what one would call safe in regular driving. So here's your next speed-and-distance puzzle.

#Puzzle 197.1

A motorcycle race is taking place on a long, empty highway in America. With that country still fol...