why do i need to know this for settlement
The naturalisation exam is deliberately filled with rote memorisation of absurd trivia as a way to catch people out and make it hard for them to pass. If you show it to Brits born there, almost none of them can do it.
I want you to have settlement too. The Home Office wants to ensure that only people who can pass a weird fairytale riddle game can get it, for some reason.