Suppose I offer you two prizes: prize A and prize B. You are to make a statement – any statement you like.
If the statement is clearly true, I will give you a prize. You will win either A or B, I am not saying which one.
And if your statement is false, you won’t get any prize.
It’s clear from this that you want to make a statement that is clearly true, because otherwise you won’t win any prize. You can say something like “One plus one equals two.” This is clearly true, and you will win either A or B.
However, let’s say you really would like to win prize A. The question is: what statement can you make that will ensure that you will win prize A?