What do you call a fake noodle? You call it an "impasta." This is a pun, and this kind of funny joke relies on word play and misconstrued meaning.
Some other examples of funny jokes include the question and answer style of delivery, such as "What do you call a pile of kittens? A meowntain." Similar jokes make use of misconstrued phrases. One example is, "What do you call a baby monkey? A chimp off the old block." Instead of utilizing the common phrase "chip off the old block," this joke misconstrues the meaning and plays off the word "chimp." Another such example can be seen through personification: "Did you hear about the race between the lettuce and the tomato? The lettuce was a head, and the tomato was trying to ketchup!" This joke plays on the phrase "a head of lettuce" and the condiment of ketchup, which is derived from tomatoes. Another example of personification in word play is "Did you hear about the hungry clock? It went back four seconds." In this case, the joke relies on a seemingly strange situation of a hungry clock only to trick the audience with wordplay that involves additional servings of food.