1. Pick a number
2. Follow the onscreen instructions
We will be able to tell you the number you end up with, without knowing the number you picked. Its very simple and works every time with any positive integer.
How does it work you ask.
Is it magic? No
Is it Science or Math? Maybe, who knows.
Is it stupid? Yes, and also fun.
If you really wanna know how it works and why it guesses your number, theres a whole section dedicated to explaining it to you.
Why not try it for yourself, you got nothing to lose, just numbers to guess.