"Who is sneezing?"
The problem is with the English question 'Who is sneezing?' there is no indication that a plural answer is expected.
I'm wondering how I can tell this was plural? is there a singular response that would also be acceptable? Ki tüsszent?
Judging by above comments plural was previously suggested and now it is singular.
Yes, your answer is the correct plural answer.
- Ki = Who - Singular
- Kik = Who - Plural
You'll notice the plural form has the plural ending, -k.
In Hungarian, you can ask "Who?" questions using the plural form.
Yeah, that was what I originially thought.
So, in this example where we have "kik", is that because it is a question?
And could you use "ki" in questions?
Yes, it's because it's a question. "Ki" is perfectly acceptable too, just remember to change the verb to the singular form.