These are all obvious fakes...
Heres one:
Hey! in R/B, start out with charmander and train it in viridian forest until it evolves, then when your in Lavender town, go to the top of the tower with all the gravestones. There will be a warp pipe on the top and then go in it. it is a warp pipe to **** and you will be able to catch a duskull, and the grim reaper! And if you are really lucky, you will be able to find the devil!
And I remeber kids actually trying this.....
Heres a very stupid one a kid told me a while back
If you beat the elite four 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 times, your pokemon will die, then when you go to proffesor oak, he will say: "I am so sorry, but you cant let good food go to waste!" And you will have a feast eating your pokemon.
Well, thats all I know