I agree with the people that said the benchmark for a "healthy homo sapien" should be based on what a fit person could do without training.
That said, I consider myself healthy, but not fit. I don't exercise, besides walking a lot.
Last week I decided to do the 50 pushups in 5 minutes one, and was able to, but it was about my limit (did 25 in the first minute, rested, did 15, rested, did the final 10, ended with a minute to spare). I was sore for several days afterwards (especially my triceps and the part right in front of my armpit).
Okay, check mark for that one.
Today I decided to try to try the planking for two minutes one. I did it, though my abs were slightly quivering at the end (not too much), but holy fuck did my back start to hurt during the second minute!
I thought that was interesting when the OP specifically says "(I'm advocating planks over sit ups; sit ups destroy your back)".
I could maybe make 3 minutes planking, but probably not, because the back pain was getting pretty bad.
No way I could swim a mile, I'd drown. I don't float, I sink, so there would be no way to rest if needed.
I couldn't do 10 pullups, I could maybe do a couple (I had to google "kipping"). Might test this one later.
Not sure I could run a 9 minute mile for 5 miles. Maybe if I really forced myself via willpower. I could probably do a 5k (3.1 mile) at that pace, but not 5 miles.
Bike 25 miles? Like, on flat ground? And I set the gears? I guess I'm not understanding this, as couldn't you just make it easy and sit there for 4 hours barely pedaling and do it? Shouldn't this have a time limit, like the push ups or running ones?
Walk 15 miles, again, with no time limit this seems quite easy.
I can't touch my toes without bending my knees. Not flexible at all.
Can't bench press my body weight. I have no idea how much I can bench press, but I'm pretty sure I can't.
Overall the benchmarks in the OP seem fairly reasonable (aside from maybe the swim one? IDK enough about swimming to tell if that's reasonable), as I think I can hit half of them or so (being a fairly healthy, but unfit person) without ever exercising at all, so someone who is fit should be able to do those (gender and age issues needing to tweak it aside).