Most hated question must be 'where do you see yourself in 5 years'. I always think it shows the guy doesn't know what to say / ask, hence the text book question.
Anyway, didn't take this one too serious to begin with as I am not REALLY looking for a new job but had a stab at it as an agency contacted me.
Anyway, I always thought I am prepared to answer this nonsense question but for some reason didn't expect it.
So I thought probably too long about it. He then asked me whether I understood the question.
I didntthink for some reason and said something along the lines of 'Sorry, I'd say I want to own my own island and retire'.
I felt immediately sick and tried to breathe when he started laughing saying 'at least you are honest'. Then he asked me to give him another answer he can relay to HR

Meeting HR today so we'll see how it goes lol