Page
Did you know that those strange geoduck creatures were once used to make pages? Okay maybe not, but it makes for a memorable image!
Imagine the strange, gooey books you'd end up with if you used geoducks for pages. Now imagine flicking through one of those books, and getting the slimy geoduck residue on your hands as you look at the pages.
けつ, よう
ページ, ぺーじ, かしら
None
A page is a page (ページ).
Since the reading comes from the English word "page", this one shouldn't be too hard to remember, especially if you've already come across it in katakana.