no...people that think that have no lives what so ever
No. It was an April Fool's joke a few years back.
Sonic has a wife and he got lost in the Mushroom Kingdom? Huh, I didn't know that. It certainly isn't in the Nintendo canon, nor did I ever hear of it happening. I didn't even know that Sonic ever went to the Mushroom Kingdom. Perhaps he was on a vacation and couldn't find a Warp Pipe out of there? Or did Bowser kidnap him?
if you mean "pikachu" then no, pikachu is his starter and it would spoil pokemon in general if he left pikachu.
No
never ever
Pikachu has never been to Yoshi's dimension, nor has Yoshi ever been to Pikachu's. (But there are rumors that Yoshi has been to Pikachu's dimension with Ash and friends and is often mistaken as a Pokemon!) Actually pikachu does meet Yoshi in Super Smash Bros. Brawl.
Pikachu will evolve into Raichu when given a thunder stone. If you mean Ash's Pikachu, then it very unlikely he will evolve his Pikachu, as Pikachu is the Pokemon Franchise's mascot.
It will be a Buneachu....and no
no
No human has ever visited Mars. None have ever been further than Earth's moon.
No, I have not encountered a giant white mushroom in my yard.