What is the answer to this riddle? (4)

Conjunction riddle is the most common riddle in China.

For example, Shandong Sunrise (guess a word): Shandong is called Lu for short, so it is a sunrise with Lu, so it is a "fish" word.

There is rain in Jizhong (type one word): How to explain Jizhong? It is in the middle of the word "Ji", so it was deducted. When it rains, it means "thunder".

Overlord commits suicide (type A): Overlord buckles Xiang Yu, which is a feather. Suicide means death, and the year of birth and death is deducted, so it is: Cui.

Pink doesn't know how to worry (type a word): pink girl, so red buttons a female word, I don't know what worry means, and buttons a happy word, so together it is the word "fun".

There are too many such puzzles. . .