Has a FIBA World Cup game ever ended 68-33?
Exactly once. On November 1, 1950, Argentina beat Egypt 68-33, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 68-33 in league history.
That makes 68-33 the 240th most common final score out of 863 that have ever occurred in FIBA World Cup. One point away, 69-33 has happened never and 68-34 has happened never.