Post # 1
Does each table at a wedding have to have the same number of guests sitting at it? I am having about 120 guests at my wedding which is in a month and there is logical way to have the same number of people at each table, does that even matter?
Post # 3
What size tables does your venue have? This will determine the max that can sit at a table. From there it depends on how many guests you have and how many seats. if you have more seats then guests it ok to leave an empty seat here or there at a table to allow groups or families to sit together. (so you have a family of 7 at one table, and a group of 4 couples at another).
Post # 4
You totally don’t have to have the same number of people at every table, just try not to have tables with very few people (less than half) or more people than the table fits.