I am getting many "The basket is empty." message. My bro said maybe it's because the basket has limited number of cookies and other people grabbed them all before me. But later on when I was like the 3rd person there, and not many people were around at all, I still got empty basket every once in a while. So I and my LS friends are speculating that maybe if the person who answered the riddle didn't answer it correctly, the basket will have no cookies.

Can anyone confirm or deny this?

I've never been quick enough to get the riddle from the Imp.