Genoa, CO
No, Raleigh, North Carolina is not the halfway point between New Castle, Delaware, and Marion, South Carolina. The approximate halfway point would be closer to the Virginia-North Carolina border, as Raleigh is located further southwest from this midpoint. While Raleigh is somewhat in between, it is not the exact halfway mark when considering the driving distance and route.
No, the halfway mark is 1.75. (1.7 + 1.8) / 2 = 1.75
Salisbury, England is near the halfway mark between London and Devon, England.
A halfway point between Oklahoma City, Oklahoma and Cheyenne, Wyoming would be Collyer, Nebraska.
Looking on Google Maps, I'd say Clarksville was about the halfway mark.
Monroe, LA
Valdosta, GA
Walkersville, Maryland
Margate, FL
Mark Russell was born on August 23, 1932.
Jones, OK
Eufaula, AL