A wise quack.
Instead of 'knock knock', they say, 'Arrr you there !'
So they can tell if they are going to work or going home while on the bus.
A lot of good you are . (the joke is that the paint can is empty)
He didn't, he was distributed evenly on both sides. Bernie supporters, please don't downvote me to hell, it's just a joke
Quack
Answer: 4 ducks-because they are in a row.