None

I have many jokes about unemployed people, sadly none of them work.
How many volleyball referees do you need to screw in a light bulb? None because they are always in the dark.
How many software engineers do you need to change a light bulb?
None – it’s a hardware problem.
How many students does it take to change a light bulb?
None. They use CFLs!
A cowboy emigrated to Wales
and opened a ranch at Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch.
Unfortunately, none of his cattle survived the branding.
Why did the hot dog turn down a chance to star in a major motion picture? None of the rolls (roles) were good enough.
Wolves love shopping and they can literally die for. However, none of them loves the flea market for obvious reasons!
If there were ten cats in a boat and one jumped out, how many would be left? None, because they were all copycats!
Why did the hot dog turn down a chance to star in a major motion picture? None of the rolls (roles) were good enough.
How many men does it take to open a beer? none. the lady should already have it open on the table!
How many dumb blonde jokes are there? None they're all true stories.
How many astronomers will it take to just change a lightbulb? None, they like the dark.
It is ridiculous having a basketball team that lacks a website. Do you mean none of them can string three W’s together?
How many Emo kids does it take to screw in a lightbulb? None, they all sit in the dark and cry.