Haha... maybe that is a hint that you aren't real, but only an extension of my mind... or maybe it is the other way around and that I'm not real... uhoh!
Teleportation would be even better than Faster than Light! I should have asked that one! However, like you mention, it does bring into some real questions of what our conscious being is really... after all, it isn't something that is tied to our particular constituent atoms, as we change those continuously all the time...
Sneaky sneaky... getting a second piece of forbidden knowledge! I would lose it laughing if the person came up with a really mundane question.. like what is the time?