I wouldn't say abnormal, just a talent. Some people have perfect pitch. I can't do the color thing, but know someone who can (and paints houses for a living). Taste, yes, smell, no, but I can't smell very well, anyway.
Ever dream in color?
Usually dream in color.
Yes,I usually dream in color;it's the black & white dreams that are "abnormal" for me,though I sometimes have them.