I, the owner of the Interactive Mathematics Miscellany and Puzzles site, is positively against anybody making a local unauthorized copy of my work or displaying it in a frame without permission. Please read Terms of use and see that you understand and agree with them.
Accordingly, the site will not work with browsers that have a facility for lump download.
Please do not whack this site.
If you accessed the site through a link collection and see it in a frame, just copy the following link into your browser and try again:
http://www.cut-the-knot.org
Thank you.