Write the following queries in SQL:
1.If an employee works on every project located in Houston, then list the employees social security number and name.
2.If an employee works on only the project(s) located in Houston, then list the employees social security number and name.
3.If an employee works on every project except the one(s) controlled by the department that has no location in Houston, then list the employees social security number and name.
4.If an employee works on exactly all projects located in Houston, then list the employees social security number and name.