Pink noise is noise in which the spectrum density is proportional to inverse of the frequency. It is also known as 1/f noise. Check the following for details: http://en.wikipedia.org/wiki/Pink_noise...
Pink is a singer, she sings sort of rock and sort of hardcore but she is quite a softie inside. To find out you should watch her videos and listen to her music.Cheers
Well, it all depends on your senses. Certain noises could make you feel unpleasent, while others may not. It all depends on what noises you don't like and what noises you do like.