Three wires would indicate 110 a hot, ground and a neutral
No it doesn't.
Did the pot come with a plug? I think you screwed up getting a 220V, but it can be made to work. If you plug a 220V pot into a 110V outlet, it should warm up but at one fourth its rated output (which would really suck, but not as bad as burning it up)
What does the plug look like, and what does your outlet look like? You want a NEMA 6-15 outlet unless the pot has a NEMA 6-20 plug for some reason. NEMA 6-15 (15A 220V) has two horizontal blades with a round ground pin underneath.