There's a task that I need to do every Tuesday and Thursday. Is there a way to configure a recurring task in Google Tasks? I can't find it.
As of this moment, no. It seems they are working on it, since it ranked among the top five in a "top requests" survey.
Well, I wrote a "simple script" which implements recurrent tasks in Google Tasks.
Published in the Chrome Store: Recurrent Tasks for GTasks
After installing it you can create a recurrent task by adding recurrence pattern to task notes. In your case:
Which means "every one week on 3rd and 5th day".