The record for solving the maximum number of single-digit addition and subtraction sums was set by Liya Raghavendrakiran (born on August 22, 2021) of Puducherry (currently residing in Qatar). She mentally added and subtracted 50 single-digit sums, non-stop, in 4 minutes, 51 seconds and 44 milliseconds, answering all questions correctly, at the age of 4 years, 6 months and 9 days, as confirmed on March 3, 2026.




