I worked for a FANG and conducted over 100 interviews. Most of that time I thought I was asking really hard questions and wasn't sure I would have been able to answer them if I hadn't seen the question before.
I later interviewed at a different FANG, surprised myself and answered harder questions than I typically gave and answered them better than most of the people we hired.
That sounds like when you spend a lot of time exposed to and walking through certain types of problems led you to getting good at solving those types of problems.
I worked for a FANG and conducted over 100 interviews. Most of that time I thought I was asking really hard questions and wasn't sure I would have been able to answer them if I hadn't seen the question before.
I later interviewed at a different FANG, surprised myself and answered harder questions than I typically gave and answered them better than most of the people we hired.
Not sure what to make of that.