This is the thread for non-offensive jokes.
You may not post jokes about personal mishaps of any kind, in case someone who has suffered a personal mishap finds them offensive.
You may not post jokes about personal failings/inadequacies of any kind, in case anyone who has ever been disappointed about anything at all finds them offensive.
You may not post jokes about any kind of medical condition, in case someone who has a medical condition, or vaguely knows someone who has a medical condition, finds them offensive.
You may not post jokes involving gods, spirits, ghosts, angels, fairies, witches, or supernatural connotations of any kind, in case someone with any kind of spiritual belief finds them offensive.
You may not post jokes about women, in case women find them offensive.
You may not post jokes about men, in case men find them offensive.
You may not post jokes about people who have skin and hair and arms and legs and things, in case someone with the same colour skin or the same number of legs as the person in the joke finds it offensive.
You may not post jokes about "What do you get if you cross animal A with animal B?" in case genetic engineers find them offensive.
You may not post jokes about fictitious characters, in case people who think Coronation Street is real find them offensive.
You may not post jokes about perfectly ordinary people with no distinguishing features whatsoever, in case perfectly ordinary people with no distinguishing features whatsoever find them offensive.
Other than that, anything goes.
Any takers?