That makes sense, the book only gave a sample of about 10 questions so I guess I failed to see the big picture. Thank you!
I wasn´t thinking of the median, but that would work too. I was thinking of mode, because say for example with juggling, many many many people can juggle only 2 balls, this is the mode but nobody can juggle less than 1 ball and a few people can juggle 6 and a few more 5 and a few more 4 and a few more 3.. so that even though the majority of people that you ask will say 2, you might end up with an average of 3.
So if I say I think I´m a below average juggler because I can juggle 2 balls, I´m actually right, but the fact is I´m a perfectly normal juggler, because it´s normal to be below average in this case.