If I asked you to multiply 51,689 by 89,542 without using your phone or calculator, how much time would it take you? Fourteen-year-old Aaryan Shukla can solve this arithmetic in a matter of ...

Indian teenager Aaryan Shukla brought laurels to the country when he broke six world records back to back in a single day. In an interview with the Guinness World Records, Aaryan said daily practice ...