I have a sense of humour which, obviously, amuses myself. It sometimes provokes laughter in others, but for the most part this is audience of one type stuff.
I also find things funny that are not intended to be funny and others don't seem to see the joke in. A lot of this revolves around the ridiculous things people tend to value in society. For example, I find human behavior in regards to status symbols quite funny in the absolute pettiness of mostly all of it. I find the attraction to gold, for anything other than a conductor of electricity, to be satirical of the human race. This, however, is considered one of the most innate and normal of human desires. Or diamonds...........I don't see how anyone can miss the humour in the TV telling them that forever love will only cost you two months salary; two months.........