What is 1 + 1 joke?

The 1 + 1 joke is a classic and simple joke where the punchline is usually "2." The joke plays on the idea that when you add the numbers 1 and 1 together, the result is always 2. The joke is often used as a light-hearted and easy way to make people laugh. While the joke itself is not particularly clever or original, it is a popular choice for children and individuals looking for a quick and easy joke to tell.