This kind of reminds me of the surprise execution paradox.<p><a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Unexpected_hanging_paradox" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Unexpected_hanging_paradox</a>