"nonsensical question" is a correct and usable phrase in written English.
You can use it when you want to express that a question does not make sense. For example, "Why did the chicken cross the playground? That's a nonsensical question."
Wittgenstein pondered what time it could be on the sun (it was a nonsensical question, he concluded).
He had met Ms Giffords before and been offended by her failure to answer a nonsensical question he had put to her.
Although Mr. Loughner, the man accused of shooting Ms. Giffords had also gone to more than one of her political meetings, and at one point had asked her a nonsensical question, Mr. Gosar said he was not worried.
In a packed London auditorium, one participant's nonsensical question rambled on for so long the author tried to interrupt, 'Shut up, I'll tell you when I've finished,' she shouted to an alarmed Don DeLillo.
Daniel Pinkwater, a popular children's book author who wrote the original version of the passage, which was doctored for the test, said that the test-makers had turned a nonsensical story into a nonsensical question for what he believed was a nonsensical test, but acknowledged that he was tickled to death by the children's reaction.
Scottish artist Katie Paterson has turned what sounds like a nonsensical question into a reality.
He also faced down some intensely nonsensical questions.
The Fuse/Funny Or Die series sees the comic – often with a celebrity in tow – loudly bombard passersby with often nonsensical questions about film and TV.
His newest skit, meanwhile, sees him quiz Drew Barrymore on things that Drew Barrymore would like, and reminds me a tiny bit of those nonsensical questions they ask on Shooting Stars: Eichner is definitely an acquired taste: at first you may well find him more than a little grating.
The backlash against the film is no match for Eichner and his frantic (and nonsensical) questions.
It's a menagerie, where some so-called reporters dress up in costumes, or ask nonsensical questions.
