You can certainly use it as a reading activity to demonstrate different writing styles - instructional versus narrative versus first person, etc. Perhaps even identifying grammar or parts of speech and sentences such as gerund phrases, participles and infinitives. The beauty is you can shape and customize it for your needs.
As a group activity it can be used to illustrate communications skills. Have the class break out into groups and try to solve the Rubik's Cube and identify the different aspects of communications needed to accomplish the task, i.e.: what words and sentence structures are required to articulate the information necessary to work together and understand each other.
Hope this gets you started. Good luck. Look forward to seeing your posts on how it goes and what you come up with from the experience.