22 Ways to Say I DON’T KNOW

22 Ways to Say I DON’T KNOW in english, other ways to say i don’t know;

That requires a bit more research first.
Beats me.
I can’t remember off the top of my head.
I don’t have any information about that.
That’s exactly what I’m seeking to answer.
Who knows?
Let me check on that.
I’m not 100% sure on that.
I’II double check and let you know.

I have no idea.
I don’t have a clue.
I’m unsure
Search me.
Hmm (interjection)
I don’t know anything about …
I’m going to investigate that further.
It’s beyond me.
It’s a mystery to me.
That’s a good question, but I don’t know.
I’m not the best person to answer that.
That’s a good question, I’II check this.
I’m afraid. I’ve no idea.