Longest duration of backward bending of thumb by a kid
The record for the backward bending of the thumb for the longest duration was set by Priya V B (born on April 23, 2018) of Davangere, Karnataka. She held her thumb bending it backwards for 27 minutes and 50 seconds at the age of 5 years, 5 months and 2 days, as confirmed on September 25, 2023.