what are the chances that halloween would be on friday the 13th?? that would be really scary!!!
And yes, I do not get the joke even if there is one.
there is a joke, and its kinda obvious (you even said it)
I thought jokes are meant to be funny
They are, and this is funny, but it’s also a bit overused
You must have a really strange definition of "funny"
funny /ˈfʌni/ adjective
causing laughter or amusement; humorous.
"a funny story"