how do you make the number one disappear

The riddle asks how to make the number one disappear. To solve this riddle, we need to consider various ways to transform the number one into something else. One possible way is to add the letter 'g' to the beginning, which gives us the word "GONE." This simple transformation shows that the number one can be made to disappear by adding the letter 'g'. The answer is "Add the letter 'g' and it's 'GONE'."