I'm comparing the means of answers given based on the continent the responder is from.

So I have North America (7.20), South America (5.40), Europe (5.84), Africa (6.95), Asia (5.91) and Australia (5.90). The mean answers they gave for a question are in the brackets. I also have the total mean of all the responders as (6.20). I want to compare this data in Rstudio. Do I want to run a one-way ANOVA or Kruskal Wallis test? There are a total of 8 questions but they are all independent of each other so I'll have to do the same thing 8 times correct?