Example: If some site have PR3 and he link to my site which have PR0, which PR will be on my site on next PR update? If my home page have PR3 and on home page I have 5 internal links, which PR will be on my internal pages?
It really depends on so many factors.. like how many links internal/external the linking page site have However, you should expect to have the same PR as max and PR-1 in most cases based on that link only. Even though, you can't make sure it's going to be that way all the time.. PR is mostly about Backlinks, but PR distribution within your own website is a different matter