Subtle humour

Sometimes my Jehovah’s Witness friends get mad at me for ignoring them when they try to tell me knock knock jokes.

My brother Ben has Alzheimer’s. I hope it isn’t hereditary because my brother Ben has Alzheimer’s.

I hate that if a girl has sex with a lot of guys everyone calls her a slut, yet if a guy does the same thing everyone calls him gay.

I told a girl she had drawn her eyebrows on too high. She looked surprised.

I was going to tell a joke about Jonestown, but the punchline is too long.

If you put your ear next to a woman's leg you can actually hear her say what the fuck are you doing?

Don’t tease fat kids, they already have enough on their plates.

My friend told me I don't understand irony...
...which was ironic because I was standing at a bus stop at the time.

I dig, you dig, we dig, he digs, she digs, they dig.
It's not a beautiful poem, but it's very deep.

A man walks into a bar, goes up to the bartender, and says, "I'll have some H2O." A second man then walks up and says, "I'll have some H2O too."
The second man dies.

Via AskReddit