Say yes. Politely let them know only another 1-2 job applications that you applied but nothing is concrete yet. Even if there's some concrete news, say no.

Seriously if you say no I think it could be worse. Who else in the world would apply one job and wait for it to come? Please laa, this interviewer also stupid wan. Ask this kind of obvious questions.

Throw away your computer and hide yourself in the closet.

Come on, what do you think you can do? Move on la?

It's not really a big deal la. If the company reject hire you cause you forgot to insert the subject, you should be glad. Usually this kind of company micromanage people, down to every single detail. And don't bother to send them any email mentioning that.

A follow up email on application status during working day would more than sufficient.

so any good news?

Just wondering, which industry you planning to venture into, and what position you are taking up?

You should send them a follow up email as I believe this happens last week.

Wait until Friday or next Monday.