The question can be as simple as yes or no or in as much detail as you would get in 1000 words. You will remember the information for the rest of your life if you so choose.
The year you're invincible includes a clause where if you're detained, trapped, or imprisoned, you will be freed within 24 hours with the time lost not contributing to the time of invincibility you have left.
The latter. I would use that time to convince everyone I am an all powerful being on a mission to bring communism to the world.