Since size 00 is a relatively new phenomenon and caters to a smaller population, being smaller than size 0, it can be hard to find merchants which carry it. You may want to look at specialty clothing shops which cater to small body sizes. Assuming that you are not very tall, you may actually find clothing which fits better looking in the teen or children's section.
Size 20 womens pants are what size in mens clothing
There are quite a few nationwide merchants that carry plus size clothing. Most department stores have a plus sized section, also stores such as Torrid and Lane Bryant are great options as well.
Size 18 onwards can normally be considered plus size womens clothing,
Mens waist sizes are simply womens sizes + 20. For example, Womens size 8 = Mens size 28 and Womens size 10 = Mens size 30. To answer the question, a mens waist size 36 is a womens size 16.
Queen size in women's clothing is what is commonly referred to as plus size clothing. This ranges from 2X to 8X and are reserved for women with big bodies.
40 inch
The UK size 16 is a 33-35" waist
There are several options availble for you. I highly suggest the following: www.lanebryant.com/, www.alight.com/, and www.avenue.com/womens/clothing/plus-size-clothing-sale .
From what i've heard, it means 'extra extra small'.
Many clothing stores also carry plus size clothing. If there is a store you like but that does not carry your size, check the store's website, which may carry sizes not available in the physical store.
Lane Bryant is a very good store for plus size clothing. They also have great prices on good quality clothing. They are in most towns.
Most K-Marts do carry plus size clothing for men and women. Check in the appropriate section for your size.