Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> While the North-South highways have numbers, the East-West highways have numbers.

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> There are over 200 national highways. North-south have even numbers and east-west have odd numbers.