This gets the package of Id 1.

https://{YourEPMServer}/distributionapi/api/v1/Packages?$filter=Id eq 1
 

This gets the Id, Name, and Type of all the packages.

https://{YourEPMServer}/distributionapi/api/v1/Packages?$select=Id,Name,Type
 

This gets the Id, Name, and Type of the 3rd and 4th packages.

https://{YourEPMServer}/distributionapi/api/v1/Packages?$select=Id,Name,Type&$top=2&$skip=2