The necktie paradox is like when you have a necktie on and you want to take it off, but you can't because you need it to make a knot to take it off. It's like a puzzle, but with clothes!
It's called a paradox because it seems like you're stuck forever, but there is a solution. You need to think creatively and come up with a different way to take off your tie. Maybe you can loosen the knot somehow, or ask someone to help untie it.
So, just remember that even when things seem impossible, there's always a way out, and sometimes you just need to think outside the box to find it!