Tell a classic joke

Once upon a time, there was an old man. He has three sons. The eldest son is honest, the second son is clever, and the youngest son is a fool.

One year after the Mid-Autumn Festival, the old man bought a bag of moon cakes and said to his sons, you can eat moon cakes if you want, but answer my question first. Whoever answers well can eat more moon cakes.

He asked: what is a circle, what is a lack of half, what is chaos, and what is static.

The eldest son said that the moon on the fifteenth is round, not that the moon on the fifteenth is half missing. There are so many stars in the sky that it won't be quiet until everyone else falls asleep. The old man said, your answer is not bad, but nothing new. This is a moon cake for you.

The second son said that the moon cakes that Dad bought were round. When I took a bite, it was half missing. It was a mess when I chewed it. After eating, it will be quiet. The old man said, this answer is very interesting. I'll give you two moon cakes.

The youngest son said that both mom and dad are round, and one of them is half missing. When we cry, it's a mess, and the whole family dies quietly.

The old man said, I will kill you, you son of a bitch.