An astronomer, a physicist, and a mathematician (it is said) were holidaying in Scotland. Glancing from a train window, they observed a black sheep in the middle of a field. 'How interesting', observed the astronomer, 'All Scottish sheep are black!' To which the physicist responded, 'No, no! Some Scottish sheep are black!' The mathematician gazed heavenward in supplication, and then intoned, 'In Scotland there exists at least one field, containing at least one sheep, at least one side of which is black.'

BaRa: That sheep is not exactly black, some of its pixels are RGB(0, 0, 0) and some are RGB(1, 1, 1). Count them and extract the hidden word.
bb: Why are black sheep not made in VB?
Cerades: I like how that black sheep looks like. I like her a lot. Kisses black sheep.
Chaosdreamer: The word 'sheep' has five letters and two of them are e's... like in 'excel'... I will put sheep in excel and will work on it by hand.
chrisi: I can crack the sheep and turn it white
Inferno: Damn, that black sheep can get close to me in the ranking, I need to solve more challenges.
n17r0: Hiuysa uyd huywe dfshdf (sorry for mai inglis)
paipai: Hola black sheep!
quangntenemy: Let's eat the sheep
S0410N3: I'm so happy I've seen a black sheep
theblacksheep: I'm sure that black sheep has a bug and can be exploited, I need to find it and write a paper!
TheHiveMind: I never talk about black sheep

Phas: Are you all blind? That is not a sheep, it is a goat!

quangntenemy: Let's eat the sheep

Newbie: Can someone give me a hint on the sheep? I've tried everything!

Let's eat the sheep

me: I have found a Sheep, but I don't know what to do with it.