"Coffee is brown."
I was going to comment the same thing. However every language has its share of such jokes. In Urdu "rose" is called "gulab" and the color "pink" is called "gulabi". So "Gulab ka rung gulabi hota hai" literally translates to "The color of rose is the color of rose". Considering there are roses of other colors as well, the sentence can be more comical like "Gulabi rang ke Gulab ka rang Gulabi hota hai" i.e. "The rose-color rose is rose-color."