>Punjab [five rivers]. They are the Jelum, Chenab, Ravee, Beas, and Sutlej

Something I knew before I was five, courtesy of the many recitations of the list made by my father. My father used to count to ten for me in Urdu, and when I learned to do the same in Punjabi, it turned out there was almost no difference, apar from a couple of minor vowel shifts.