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 ...

Watch Aaryan set a new record for the fastest time to mentally add 200 four-digit numbers. Russian tanker Eco Wizard erupts in blasts, toxic ammonia leaks spark emergency The sleeper train holiday to ...