UML Question

1. What is UML?
2. How many types of diagrams are there in UML ?
3. Explain in short all types of diagrams in UML ?
4. What are advantages of using UML?
5. What is Modeling and why UML ?
6. What is the sequence of UML diagrams in project?
7. How did you implement UML in your project?
8. Do I need all UML diagrams in a project?
9. Give a small brief explanation of all Elements in activity diagrams?
10. Explain Different elements of a collaboration diagram ?
11. Explain Component diagrams ?
12. Explain all parts of a deployment diagram?
13. Describe the various components in sequence diagrams?
14. What are the element in State Chart diagrams ?
15. Describe different elements in Static Chart diagrams ?
16. Explain the different elements of a Use Case ?