A tricky question from the Australian version of The 1% Club , hosted by comedian Jim Jefferies, has left many scratching their heads, with just 25 percent of participants able to solve it. The brain teaser, deemed "easy" by Jefferies, stumped most viewers. The puzzle presented a sequence of letters: TETTFFSS , asking which letter comes next. Despite its seemingly straightforward nature, only a quarter of people managed to answer correctly. The clip, shared by user @shambles_3, shows