A friend of mine has been doing it and it looks fun. I don’t think of myself as a really funny guy, but I tried for the past several weeks to take note of amusing moments and thoughts and see if I could make them into something. Here is what I have at the moment. What do you think?
Honestly? They’re horrible. Most of them don’t even make sense.
I can see the humor, or at least the potential for humor, in them, but a lot would depend on the delivery.
And if it’s intended to be a complete routine, well, in my totally inexpert opinion, it doesn’t flow very well.
Especially that last one makes absolutely no sense.
Definitely a lot will depend on the delivery. As to flow, it should be thought of as a series of disconnected one-liners, if that makes sense. (Each of them is almost completely it’s own thing, though I tried to arrange them with different intended intensities of humor in mind, like a chuckle followed by a big laugh followed by a couple more chuckles etc. Just kind of spitbaling on that.)
How will I deliver it? For my first attempt, assuming there are any more after that, it’s going to be almost like a deadpan recitation. I have a lot of public speaking experience though so while the appearance will be of a deadpan recitation, I’ll actually of course be taking into account what’s actually happening, and throwing out winks and nods as appropriate, etc. Hope that makes sense. The proof will be in the doing.
The vibe I’m going for I guess is like a Mitch Hedberg and Steven Wright style.
Yeah that one… It’s the one that’s most likely to be just cut out from this set. It’s also why I put it last, last one in the list is most likely to be cut for time.
It’s supposed to be just an absurd thing where the audience suddenly realizes this comedian has buried the lede, that he’s having sex with his own mom, and treating this as normal and just a “by the way” kind of thing.
I would suggest being naked and farting peas at the moon as part of your delivery. That’d be a reality show for sure.
Seems unwise but I will give it a try!
While yes, they aren’t great at all, they are still MILES ahead of some of the “jokes” I’ve heard at many an open mic night I’ve accidentally been to. You’d be the funniest one there.
In all seriousness, don’t give up the day job.
Yea, that last one, at first it kind of hung out there in the air. But, I thought about it, like you were there with your supposed Mom, but she’s not your Mom cause you’re not born yet and in walks Dad with a gun, but he’s not your Dad. In other words you are your own Dad, oh…wait, that doesnt work. It’s like this…no that won’t do either. Oh, forget it. NM. It is not funny, at all.
Good evening, Earth revellers. Have you ever noticed that in a typical human monogamous heterosexual relationship the male partner frequently acts in ways that differ from the behaviours of his female opposite, causing a verbal tension which often escalates into a long-standing rancor? I mean, what is up with that?
No, I don’t think your way is as funny. 
It worked for Philip J. Fry. He slept with his grandmother and became his own grandfather.
So, about your mom…
I thought the Open Relationship gag, and the Gentrification one, were fairly good.
Oddly enough, I did like the last one. Needs a little tighter editing though. Like, “…I’d say, ‘Do you recognize me?’ And he’ll say, ‘You’re the guy screwing my wife! Get the hell outta my bed!’”
Also keep the open relationship one.
The rest, weeellll, it’s up to you.
Who are you? Where do you come from? What makes you say those things? That’s missing from your OP, the audience needs a context to find those lines funny. Jokes aren’t just words, they’re part of a story, told by a character with a background and motive, leading to a conclusion. A comic needs to be a complete character.
Otherwise, keep your day job for now.
Honestly, they seem a little sterile, but it’s hard to tell without the props.
Protip: use a bicycle horn or duck call to cue the audience on when to laugh.
What do you think is (or will be) your greater strength: developing your own material, or the delivery?
I tend to think you’d be further ahead if your monologue were to focus on jokes built around two or three loosely defined ‘themes’ (e.g. relationships, sex, job, family, etc.) as opposed to a series of disjointed one-offs.