I'm honestly amazed anyone can keep focus on menial questions past the third one. Is this really a normal practice? None of the hiring interviews I've taken par

I'm honestly amazed anyone can keep focus on menial questions past the third one. Is this really a normal practice? None of the hiring interviews I've taken part in had these. They had maybe one practical problem (that was abstract but not especially difficult) that you could solve in ten minutes of back and forth.