Two *days*, rather than two weeks. 

If you click on review (on top, next to your name), then on tools, then on close, then choose $7$ days, and then "recently closed", the list will include newly "available" questions. 

(Shortcut: Click [here][1], and then choose "recently closed".)

Once you reach $20$K you should be able to vote to delete answers with negative scores, and questions just closed with negative scores of, I believe $-3$, or so, without having to wait the two days.


  [1]: https://mathoverflow.net/tools?tab=Close&daterange=last7days