They're probably looking for a breaking facade reaction rather than any specific right or wrong answer.
There's a school of thought that thinks such approaches to questioning works, another that thinks it doesn't - but in general border agents look more for body language and reactions rather than correct answers to trivia questions.
Some say the best way to be forgotton | passed through | overlooked by aircrew and border agents is to rapidly get "bucketed" into a category group .. too many drinks and make a loud pass at staff, for example, and you're in the "drunken bore" group.
There's a school of thought that thinks such approaches to questioning works, another that thinks it doesn't - but in general border agents look more for body language and reactions rather than correct answers to trivia questions.
Some say the best way to be forgotton | passed through | overlooked by aircrew and border agents is to rapidly get "bucketed" into a category group .. too many drinks and make a loud pass at staff, for example, and you're in the "drunken bore" group.