Mystery Chronicles: Murder Among Friends

Could someone please tell how to do the pick on the skull's teeth lock? I am really stuck. I can't seem to even get the locks to move no matter how long I push my mouse button?!?! Any advice would be greatly appreciated!!!!! Thanks, terize

Just put your mouse under the numbers and push them up the pick will come out, then start back down starting at 4 until it stays in place. Then go to the next one. Hope it helps.