What is 789?
1.
NOOOOO!! that's not the joke!! youare a liar!
It's:
"Why was 6 afraid of 7?"
"Because 7,8,9!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
<Audience is supposed to crack up laughing...>
Note that I said SUPPOSED.... :)
2.
The punchline to a rather average joke.
Why is 10 scared of 7?
Because 789