math
posted by Aj Dock .
make up a set of numbers having the following landmarks mode 21 median 24 maximum 35 range 20

From your data, it looks like it will be skewed toward the right (higher values).
You will have to explore the possible scores yourself. Doing this will provide you with a better understanding of the concepts in basic statistics. That cannot be accomplished by having us do all the work for you.
However, I hope this helps a little. Thanks for asking.