What does Buddhism say about the consequences of good and bad behaviour?

Please someone clarify: 1. Does Buddhism believe in rebirth? 2. There is an general belief in almost all religions that our good and bad will be carry forwarded to next and next to next generation and all, what does Buddhism say about that? 3. Almost all religions says give a part of money to god and that will be honoured after death. What is Buddhism's stand on that? 4. In many religions, if the leaders (monk, sadhu or what ever may be.. ) do something wrong other monks says that they will be punished after death by god,but they keep on doing it. If god punished him instantly many will be saved. But this is not happening. How does Buddhism look at this?