Looking for Officer-Level Govt Exams with the Least Difficult Exam (Serious Answers Only)

I completely understand that no government exam is easy and that every exam requires effort and preparation. However, I am trying to compare different officer-level exams purely based on the difficulty level of the questions and selection ratios—not competition, vacancies,, just how tough the actual exam is.

I was considering RRB PO since I’ve heard that the question difficulty is on the lower side compared to other banking and government exams. But I want to know if there are any other officer-level government exams where the questions are of a similar or even lower difficulty level.

I’d really appreciate well-explained and helpful responses to get a clear picture. Please avoid any unnecessary negativity—I’m only looking for a fair and informative discussion.

Thanks in advance for your help!