Wait a minute wofahulicodoc, you left out two wrong answers...

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Question: Farmer Brown has ten pigs; seven of them are brown, two are white and one is pink. How many of them can say that they are not the same color as any other of Farmer Brown's pigs?
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Wrong answer One: Only one, the pink one.

Wrong answer Two: All of them can say it, but only one can say it and have it be true.

Wrong answer three: Pigs can't talk.

Wrong answer four: Pigs can talk, it is seeing that they can't. Pigs see in "spectravision". Their eyes don't outline well and colors grade imperceptibly into the surrounding environment. They can't see rainbows.
Therefore none of Farmer Brown's mud rucking pigs can honestly claim uniqueness.

Wrong answer number five: Faldage unintentionally misstated the question.
When Faldage said..." How many of them can say that they are not the same color as any other of Farmer Brown's pigs?"
Think a minute. What are the odds that a farmer named Brown would have seven brown pigs?
Highy unlikely, huh? I think that Faldage meant to ask...
"How many of them can say that they are not the same color as any other of the farmer's brown pigs?"

In this case the answer is three - the two white pigs and the pink one.

Fess up Faldage!