Hey Leetcode Mods and Community!

I'm starting to practice Mock section for various companies https://leetcode.com/interview/
However, I'm not entirely sure what the "Problem sets" in those cards mean?

For example: if Amazon card has 16 problem sets and each "set" gives me 2 questions. That mean there are 32 questions in total?
If not what does the number of problem sets mean?

Thanks!