How to provide "View Page" Settings for "All Users" for a particular page.I'm not able to find any place where i can edit the permisions for a particular user.

Each page's Page Settings section is where you set the permissions for the page. Normally, you can set the view and edit permissions for security role membership. You can also set the permission there for individual users.

In PageSettings--------->Permissions there is no sections where i can edit these settings.. Inspite of logging in as Host user, i'm not able to see where i can edit the settings

Do you see the Permission section for User Roles?