See the attached image: Look for the circled note on the Amazon book page. If you don't see this note the book does not contain page numbers, at least in my experience.

Your second point probably would not have enough popularity to warrant be added by Amazon, though it is an interesting option, especially for school children.

Your third point would be a good option, though perhaps better implemented through the Amazon website than the Kindle. I think the website sort of unofficially does this on a limited scale. I notice that down the page are a few titles listed that seem to be similar to the one selected.