A fully alert, oriented patient consistently gives approximate wrong answers to simple questions, with an amused, facetious manner, but shows no clouding of consciousness, disorientation, or hallucinations at any point. Before revealing the answer: is this Ganser syndrome?

No, this is more consistent with talking past the point in general than with Ganser syndrome. Ganser syndrome requires the specific combination of approximate answers with clouded consciousness, disorientation, and hallucinatory experiences; here, the patient remains fully alert and oriented with none of these accompanying features, which points instead toward the more isolated pattern of talking past the point.