This is not a productivity exercise. It is a short diagnostic, and the point is the questions you cannot answer rather than the ones you can.
The questions
One: if you were unreachable for a week, could another adult run the house? Two: when is the next thing due — a service, a renewal, an inspection? Three: what is the oldest appliance and when does its warranty end? Four: could a second person find the insurance policy in two minutes? Five: which recurring bills renew automatically, and at what price? Six: does anyone else know where the important documents actually are?
Score it honestly
Most households answer two or three. That is normal and not a failing — it is the predictable result of everything living in one person's head. The value is that the four you missed are now a specific, finite list rather than a background sense that you are behind.