Is the OP for "easiest job to GET that you can make bank" or "easiest job to DO that you can make bank" or both?
Working in "investor relations" in most public companies is ridiculously easy, and makes good money....but usually not an easy job to get. The qualifications are usually that you must be literate in Finance (e.g. very good finance vocabulary, but not actually good at Finance), good public speaker and articulate writer, and good looking. Think of a weatherman who knows how to bullshit about investment banking and markets. Again, there is ZERO need to actually be able to do math beyond adding and subtracting. You could bomb biz calc as long as you can talk about corporate finance in an eloquent way whilst looking good doing it....so, that's either super easy for you, or it is super hard for you.
A an easy job to get, that is actually pretty hard to do, which makes good money, are the trades. Plumbing, electrician, carpentry, etc. Find a good community college or vocational/technical program and go get trained up. Then, take whatever job seems like will teach you the most. After a couple of years (or until you know what the eff you are doing), start buying complete crap hole houses for cheap (on the side), and fix them up at night. Trade "trades" with other folks (plumbers trade with electricians, etc.) and help each other out (i.e. barter). Flip the houses or rent them out (I recommend renting them out). Keep doing this at the pace of about 1 a year for 15 - 20 years. Then, retire and babysit your properties, or just flip houses full time. Better path to retirement than about any other job I know of, but be ready to work your ass off during those 15 - 20 years.
