Can You Solve the Airplane Riddle?...
Professor FukanÅ is going to circumnavigate the globe in his airplane, but his tank doesn't hold enough fuel for the entire trip. He has support planes of the exact same model which can refuel him in the air, but none o...
https://www.neatorama.com/2016/12/05/Can-You-Solve-the-Airplane-Riddle/
