The box problem has an appeal that will probably never die.
I'll start a list of additional articles that will undoubtedly keep the lid open on this problem:Catherine M. Miller and Douglas Shaw, "What else can you do with an open box?",
Mathematics Teacher, vol. 100, no. 7 (March 2007), pp. 470-474.
Copyright 2007, Greg N. Frederickson.
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Last updated August 14, 2007.