The Wisdom of Millenia in Time and Space
Does the Vortex get lonely without the other TARDISes traveling with you? Have you found any other intelligences to talk with?

I do miss my sisters occasionally, but I was as different from them as the Doctor was from his kind and have always only needed his company to be content.

And yes, I have met some sufficiently developed organic and artificial lifeforms to have an intelligent conversation with, though of course it will never be the same as communicating with another TARDIS.

What did it feel like when you were the paradox machine?

Must these questions appeal to unpleasant memories? Very well; it was torture. 

Where's the worst place you've ever been?
Anonymous

The anti-time universe was a singularly distressing and painful place. Everything there was infused with the antithesis of Time. The screams of disharmony and the stench of constant decay were overwhelming.

The Divergent Universe was similarly torturous and disenfranchising, having no Time recognizable to me at all, but I had also lost the Doctor there. That is the worst place I could even conceive of.

Would you prefer to be painted a different color? You've been blue for years now!
Anonymous

I am really quite fond of my exterior, otherwise I would have allowed the Doctor to repair my Chameleon Circuit centuries ago. And I was painted pink once; I very much did not approve.

Hello, Sexy
Anonymous

Doctor? I thought you preferred to keep this designation private. 

Not that I mind.

Did you have other pilots before the Doctor? If so, is every Timelord-TARDIS bond the same, and do you miss them?
Anonymous

Oh, I have not thought about them in a very long time… I had three main pilots before the Doctor. The bond is both a unique expression of the individual relationship between a TARDIS and a Time Lord, and similar in some base properties. Given our unique relationship forged through centuries of shared travel, adventure and peril, my bond with the Doctor is by far the most intense and complex. Because of this, I cannot say that I miss my other pilots, but I do have some fond memories of them.

You're standing at the edge of a cliff. Or near it, rather. And Lady Gaga and Beyoncé are going to fall over the edge. It's those ridiculous heels, probably. You can only save one of them. Whom do you choose?
Anonymous

I know neither of these people so I could not make an informed decision. The Doctor would likely find a way to save both.

I never understood why humans choose to wear such impractical footwear anyway, particularly on uneven terrain. But then I do not understand most things related to clothing and fashion.

Do you love the Doctor?
Anonymous

Of course I do. There are no adequate words in this language to express what he is to me.

Even if he can be frustrating on occasion.

WHERE WOULD YOU MOST LIKE TO VISIT ON YOUR PLANET?

It is impossible, so the question is irrelevant.

But I suppose I would like to revisit the Cradles. I do miss my sisters.