The year 2012 does not exist, as it is a measure of time. Time does not necessarily "exist," however history says that it will happen. As for the suspicions about an apocalypse to occur during that year, that is up for debate.
Slavery does not exist in North America in 2012.
No there are no mermaids at all. they don't exist
it does not exist.
The cast of Monsters Do Not Exist - 2012 includes: Nang Nay as Nai Ander Pardo as Yeak Bin Sothum as Grandmother
2012 Never, it doesn't exist.
Currently Lego Doctor Who does not exist. (As of 2012).
In 2012, One more ninja existed. If he is alive to this day then yes, Ninjas exist.
The cast of I Do Not Exist Unofficial Music Video - 2012 includes: Nick Dolezal as himself Hipolito Fernandez as himself Genise McCormick as herself
nibiru does not exist.
Those don't exist, so no.
Yes it does and is available on pre-order from 12th September, 2012 and will be available in stores from 21st September, 2012.
The Snow dojo currently does not exist on club penguin. Rumours say it will be released in November 2012.