1 : Set Reminders for Times, Places, and People.
2 : Use Natural Language Search.
3 : Identify a Song.
4 : Search the Web With Google (or Another Search Engine) Instead of Bing.
5 : Perform Calculations and Conversions.
6 : Track Flights and Packages.
7 : Find Facts.
8 : Check the Weather.
9 : Get Directions.
10 : Set Alarms.
11 : Launch Programs.
12 : Send Email.
13 : Create Calendar Events.
14 : Just Chat.
15 : Get a List of Commands / Help.