First of all I'd like to clarify that I am in no way an expert on fungi, I'm just a guy with a book on them. Don't take this stuff as gospel. Also it would be handy if you could say where you found these mushrooms, what climate, and what plants were nearby, especially trees. REMEMBER: If you can't 100% positively ID a mushroom, leave it.
>>836811Two varieties here. Central ones look closest to Agaricus Xandothermus, originally I thought they were Entoloma sinnuatum but they're far too small for that. Is the base of them yellow? They tend to bruise yellow when pulling them up. Do they smell of carbolic? If so, they're poisonous, avoid. Variety on the right I've got even less of an idea about, avoid.
>>836815Looks like a red capped Boletus edulis, but it's too early in the year for them to be sprouting so it's probably not that. Could potentially be Amanita Muscaria but I can't see the cap properly, which would be flecked with white. Even if that was the case, it's not that as it's lacking the ring. Avoid.
>>836816No idea. Avoid.
>>836819Potentially Laetiporus Suplhureus. Also potentially edible, if I'm right. Get someone with more knowledge to ID. Did it you find it on a broad leafed tree, especially an oak?
Gonna take a break for the sake of character limit.