OK
So it is just me or are they're questions that haven't been answered yet over the last 3 years and that maybe they will be answered in the finale?
Who blew up the Tardis?
Why must the question never be answered?
Why did the alliance think the doctor blew up the Tardis? Unless he perhaps does blow it up in the future?

We had the answer to that tonight, no? The answer to the question opens The Doctor's tomb and allows someone to enter his time stream and destroy the universe.


Answered in the Pandorica Opens although its not clear they do think he (purposefully) blows up the TARDIS. They lock him in the Pandorica because 'only the Doctor can pilot the TARDIS'. If he's not there to fly the TARDIS then it shuts down and can't possibly blow-up and destroy the universe (from their perspective anyway).

So basically the silence thought the doctor would destroy the universe by answering the question. Which is true because if the question is answered the great intelligence will enter his timeline and destroy the universe.
That does seem like a good interpretation though I feel they could have explained it better.
But that leaves us with one question doesn't it. Who blew up the Tardis?

As stated the question must never be answered because doing so will allow the Great Intelligence to gain access to the Doctor's timeline and destroy the Universe.

On who blew up the TARDIS - that was a question I really hoped would be answered today and yet again nothing. It's been three series now, I don't think it's ever going to answered clearly on screen and we're just meant to assume it was The Silence.

Yeah I thought the question must never be answered because the great intelligence will get into the timeline I but wanted to check.
Perhaps the silence blew up the Tardis to kill the doctor and the alliance thought it was the doctor. The alliance didn't actually know about the question did they? Like I said if that was the case they could have explained it better