Hi Jay,
I've split your post out into a new thread, as it's preferable that each question has its own thread.
Yes, those are Lilies (Liliums) and need to be replanted soon. You can plant them in a pot as long as it's big enough and well-draining. Lilies like to have 4 to 6 inches of soil above the top of the bulb (and more below the base of the bulb) for their root system.
