Question: Provide Situational Cases for each number

1. Stipulation pour autrui.

2. Solidary Obligation.

3. Joint Obligation.

4. Divisible Obligation.

5. Indivisible Obligation.

6. Bilateral Contract.

7. Unilateral Contract.

8. Executory Contract.

9. Executed Contract.

10 Aleatory Contract.

11. Absolute Sale.

12. Conditional Sale.

13. Consignment.

14. Residential Lease.

15. Commercial Lease.

16. Land Lease.

17. Equipment Lease.

18. Financial Lease.

19. Operating Lease.

note provide reference at the end