There are over 1,77,000 ways to tie a tie
According to mathematician Mikael Vejdemo-Johansson from the KTH Royal Institute of Technology in Stockholm, Sweden, there are 1,77,147 ways to tie the knot of a normal necktie. In 1999, mathematicians, Thomas Fink and Yong Mao, calculated that there were only 85 different ways to tie a tie. Popular tie knots include 'windsor', 'half windsor' and 'four-in-hand'.