A police officer pulled over two nuns riding on a motorcycle, and said to the rider, 'Ma'am, you're driving much too slowly, could you please drive faster?" The nun said, 'Oh, I saw the sign with the "21" and assumed the speed limit was 21 km/h" The officer explained: 'No ma'am, the speed limit is 80. The highway number is Interstate 21." Then the police officer looked at the passenger and saw the other nun shaking like a leaf. "Excuse me sister, but what's wrong with your passenger?" "Oh, that's probably because we just got off Highway 205."