You don't need jokes to make people laugh in a talk. Use memes, Calvin and Hobbes, or shared pop culture references instead. Stand-up comedy ranks as the hardest performance art, followed by drag.
Chapters
And so I think finding humor is important, but telling jokes is not critical. There are many ways of inserting humor into your talk. Even if it's just finding like an Internet meme or a good Calvin and Hobbes cartoon or a Far side cartoon and posting it up to point it out, it can be an effective way of easing that tension. One of the best examples of it that I've ever seen. My wife loves RuPaul's Drag Race. She just watch. And so because she watches it, I have to watch it. And I'd watch it anyways because I think it's one of the best performance arts out there. I think stand up comedian is the hardest performing performance art. And then drag queen, I think in that order, is the two hardest.