1. The range is the largest number minus the smallest number. Therefore, any number between 42 through 68 works, since they are the extremities. (e.g. 50, 65, etc.)
2. As said previously, the range is max.-min. Thus changing the maximum by adding a larger number or the minimum by adding a smaller number will do, so a number less than 42 or larger than 68. (e.g. 1, 1937, etc.)