Because they ror.
They have a sixth sense of humor
Because they always take things literally
Dadjokes
Soak it in petrol and put a match to it. (This is a joke, not and instruction, Reddit)
He was playing with a bunch of cheetahs!
He was a lion.
I believe I can fry.
All are equally oxymoronic.
Beep Beep Beep...
There is no sound... The P is silent.
There are too many wongs and wings and someone could wing the wong number.
A: They throw them down the stairs to see what noise they make.
ROR! No one raugh in North Korea!