I have a lot of friends who give me lives it shows that I have several and when I hit candy crush under my Facebook it does not add them and they are gone. What happens to them?
You can't collect lives from the facebook website. To collect the lives, open the game. There will be a mail box at the right side. Click on it. You will see a number of things like your friends asking for lives and friends who gave you life. To get the lives, press accept button there.
Note- If your present lives are 5 and you collect 1 live, it will not become 6, i.e., they will remain 5.