Could V1 and V2 rockets win World War 2?

Answer 1

No. The rockets had far too inadequate guidance systems and couldn't deliver a significant explosive payload. Beyond that, they were far too expensive to build: Germany could not afford to build enough of them. And once the nuclear research was abandoned, which might have provided a strategically valid payload, the rockets were a military extravagance whose only value was the psychological effect on morale.