that chinese are 1/3 of the earths population (and roughly earths population is hovering at about 6 billion), they wont need to walk across the border because they will already circle the earth.
china has 2 billion people, and considering that they are 3 ft apart, that would be 6 billion feet.
Since the circumfrence of the earth is 40,023,890 meters, that would translate into 120,071,670 ft. So that would mean that those chinks would wrap around the earth 50x even before they started moving across the border.
this whole riddle may be a farce, because you said they were holding forks. Everyone knows that chinese people dont use forks.
