I freeze in interviews, tips?, call-centre agent here

I get tongue-tied when I am asked about my weaknesses. I am in Richmond, in case local advice matters. The role is similar to my old job as a call-centre agent. Any questions to ask at the end?

Ask about the first ninety days. It shows you are thinking about the work.

Prepare three stories with a clear beginning, action and result, and adapt them to the questions.