How do you add sound to your game?

Examples:

A short song to a intro

A beep sound if you entered a code

A creaking door when you open a haunted house's door

etc.

Anyone know how? :)

That's a pretty vague question, but here's the basics:

game.Workspace.Sound:Play()--do this to play the sound
wait(5)
game.Workpace.Sound:Pause()--this stops the sound

That's the basics. You just put the sound into the Workspace.