1. Gallifrey - the good Doctor painted such an imaginary picture of it in an episode aired over the weekend.
2. My biggest fear would be that people actually CAN hear you scream in space.
3. A parallel universe in which I was the handsome, rich one.
4. Shouldn't this be question number one? Because if people answer "no" to this, it sort of makes the other 3 questions redundant. Anyway, answer is; like a rocket.