What are the possible states for a docker container?

Docker Remote API 1.24 defines one more state

No, there are other possible states. The Docker Remote API defines the following states:

created A container that has been created (e.g. with docker create) but not started
restarting A container that is in the process of being restarted
running A currently running container
paused A container whose processes have been paused
exited A container that ran and completed ("stopped" in other contexts, although a created container is technically also "stopped")
dead A container that the daemon tried and failed to stop (usually due to a busy device or resource used by the container) - Added on v1.22

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