The first 3 are in the Sedum family, the last 2 are in the cactus family and the middle one I dont have a clue, I'm not much help, but you've come to the right place to get lots of info & help from the members.
The first three are Sempervivum. With these is the tag is lost then they become a no ID. Not sure were these are but, they are alpine plants. They look like they may need more time @valleylynn
@scremona
I agree with Julia, the first 3 are unknown varieties of sempervivum. They do look like they may not be getting enough light. What are your growing conditions like.
I also agree with greene about the fourth photo being one of the many Fishhook type of cactus. http://garden.org/plants/searc...
The first 3 are in the Sedum family, the last 2 are in the cactus family and the middle one I dont have a clue, I'm not much help, but you've come to the right place to get lots of info & help from the members. 
