Do you sell rush tickets for showes the same evening? If yes at what time can they be purchased at the theater?

It's best to contact the theater directly.

Call them

You have to ask them directly they have a homepage, there I will find a fon.

Yes, and it varies per show. When I asked rhem a few weeks ago Avenue Q was rush, but only in the 1st 2 hours after the theater opened. Puffs was student only rush (each student could buy 2 tickets) and 2 hours prior to each show.

Try TodayTix. It depends.