Depends on the question. "Is this your male member the bird is perching on in the infamous early internet meme?" probably isn't related to any aspect of job per

Depends on the question. "Is this your male member the bird is perching on in the infamous early internet meme?" probably isn't related to any aspect of job performance, at most employers. In which case I'd say yes, you're allowed to refuse to answer. If the question is job relevant, its more complicated.