Hello :). Your succulents are definitely all from the Echeveria family. I am not knowledgeable enough to know exactly what species you have though, sorry ':). I recommend simply google searching images for Echeveria and I'm sure you will start finding matches. That is how I have been able to identify most of my succulents. I can tell you that, being Echeveria, they will likely all be hardy to about 36* F so keep them indoors on a bright window sill where they can get a good 5 hours of sunlight. Or just a southern-facing window, if you've got one. You should always turn them a quarter every morning so the plants grow healthy and full all around. These guys are also really cool about letting you know when they need a little more water. When they are 'full' so to speak, their leaves will be decently plump -the plumpness varies with species. Their color will be nice and bright too. When they need a watering the leaves will deflate a bit, and at the same time their soil should be bone dry at the top. If summer is intensely hot they may deflate quicker. The best thing to do in that case is not necessarily give them more water, but instead move them to a 'gentler' sun window. Well, I hope this helps you down the road! :) Oh, one more thing: If you wanted to propagate the same plants you have for someone else, Step 1) Set out a tray of moist -not soaking- potting soil in an equally bright windowsill. Step 2) Pick 1 or 2 healthy, plump leaves from your plants and set them just anywhere for 3 or even 4 days (They need to develop a scab of sorts at their base). Then lay them on the soil; natural sun-facing side up. Step 3) Leave them there, re-moistening the soil when it gets dry. In a few weeks they will start sending out roots from the very base and start growing their own leaves. Whala! :) Editing comment (10-28-2016) : I wanted to apologize for claiming your succulents were "definitely all from the Echeveria family". I am only an recent enthusiast in collecting cacti/succulents and in no way an expert in diagnosing species. Your second commenter has made it clear to me with her photo example that some succulents families like Graptoveria and Echeveria can be astonishingly similar in appearance. Hopefully I have not mislead your research too much.

The largest plant could be xGraptoveria 'Fred Ives' - the leaves tend to be longer and not very wide. It also grows bit longer stalks, and propagates very easily. It an get quite large as it gets more mature. Here is one of mine:

Succulents need water just as any plants, but the media they are potted in should drain well, and almost dry up all the way, not just the top. Depending on potting mix used (together with other growing conditions), it could take few days or much longer.

Bone dry top may or may not be sign that it dried enough. It depends very much on what is the soil plant is in.

If the potting mix is mostly dry, the container with plant in it should feel quite light. After watering, it will be heavier. It could be difficult to tell for sure, so you could help yourself by sticking a bamboo skewer deep inside the soil - 3/4 or even all the way, avoiding poking the roots. When taken out and is clean and feels dry, time to water. If it has small particles sticking to it, or feels cold/damp when touching top of your hand or cheek, there is still enough moisture ad do not water. Picking up the pot after watering and also just before watering will help to learn to recognize if dry enough or not.

Soils with high amount of peat (that is what most plants from the store come in) and/or too much organic matter usually stay wet for too long. Repotting plants into fast draining mix is a good practice; also checking for any possible pests and/or diseases - plants in stores may get the 'hitchhikers' from other plants very easily.

Just noticed you posted exact thread 2x - there are some answers there; -duplicate thread here-