Can't delete last blank page from Word
You can try to delete these just as you would normal text, and in simple cases that works, but sometimes it doesn't. The reason for this is that Word uses the final ¶ at the end of a document to describe some special styling rules. If your document ends with a table, or columns or something other than a normal paragraph, Word has to insert an empty paragraph to contain this style. And if this empty paragraph doesn't fit on your last page because the table you have or whatever it is takes up all the space, then you end up on this blog.
Knowing this, the solution is simple - select the ¶ on the last page and change it's font to 1. This will hopefully make it fit on your last page. If not, you can shorten the bottom margin by a tiny amount to make it fit. Alternatively if you really need the pixel-perfection, you can select the ¶, right-click, go to font, check the 'Hidden' tickbox, apply the font styling, and click on the ¶ icon to hide paragraph marks, and this will make it disappear completely from the document (it re-appears whenever you click the ¶ icon).