Post office.
Because they don't know the words.
Four. O, double-u and e.
Twerky! I thought of that yesterday, apologies if you've heard it a thousand times already.
Rock is playing three chords for a thousand people. Jazz is playing a thousand chords for three people.
The letter "D"!
Because the devil takes many forms.
He heard that you have to stamp letters or the post office won't send them.