Joke Collection Website - Cold jokes - What an interesting joke!

What an interesting joke!

How+ adjective/adverb (+subject+verb)! How fast it flies! How beautiful! Subject+verb can be omitted.

So:

How interesting this joke is!

What+a/an+ adjective+singular noun+that's it! What+adjectives+plural nouns+they are! What+adjectives+uncountable nouns+that's it! Among them, it is/ their is can also be omitted. For example, what a tall building! What an interesting book! What fine weather! What a kind girl!

So:

What an interesting joke!

On the same floor, it's best to use funny ~