In Taiwan there is literally a 7-11 on every corner, sometimes even TWO at one intersection. When you have something like 22 million people squeezed into something the size of 1/15 of Texas, it makes sense.
So, today when I was playing 20 questions with my students, I thought it quite clever when nearly every group included the question "can you buy it at 7-11?" in their process to figure out what the item to be guessed was.
I've never heard that question asked when playing in America . . . . just one more fun little part of life here.