Shoe size 10/11
You will find that a size 8 shoe will be marked as such if you are shopping for shoes in North America (Europe uses a different scale). I would describe it is slightly below the average male shoe...
37?
a 5 or 5 1/2 in mens
Men - European 40-41 for USA 7-7.5 Women - European 38-39 for USA 7.5-8