Question: what knots are used for fishing?
Answer: Palomar Knot. One of the most popular knots, the Palomar Knot is strong and relatively easy to tie. ... 
Uni Knot (aka Hangman's Knot) ... 
Surgeon's Knot (aka Double Surgeon's Knot) ... 
Improved Clinch Knot. ... 
Trilene Knot. ... 
Berkley Braid Knot. ... 
NanoFil Knot.