Hermione teaches you the Alohamora Spell in the 
common room after Quiddich practice. The spell 
opens locked doors with pictures of stars on them. 
 
Professor Quirrell teaches you the Flipendo spell
in your first lesson.
  
The Transfiguration Spell is taught in 
transfiguration lesson. The spell gets rid of object
(files of books etc.) that are put over switches by
turning them into birds.
 
The Flying spell allows you to move some stones and 
statues.

The Lumos Spell Lights the area for a few minutes.