No, lands do not go on the stack, cannot be countered and do not count as spells in any way.
Lands are considered to be permanents. It is important to note, however, that they are colorless permanents, because they have no mana cost with which one could distinguish color.
A 'Spell' is any card that is not a land. Spells represent magic effects like Sorceries and Instants, but also spells that summon Creatures, Artifacts, Planeswalkers and Enchantments, etc.
Abilities are not spells, but note that creatures and all other cards (but lands) are only spells in the moment they are cast and on the stack. So if you cast a creature spell, it's not a spell after it resolves.
A permanent with shroud cannot be the target of spells or abilities.
Creatures are also considered as spells. You don't need anything else then lands and creatures to build a sliver deck, but if you are building a gemhide//poison deck, alluren, while it is a quite rare card, can basically send all your slivers out if you combine it with recycle
I'm not sure I got the question right.but blue abilities in magic the gathering are usually:draw cards,counter spells andevasion abilities, for example: unblockable or flying
anything that stays permanently on the field ie lands, creatures, artifacts etc
Lands usually have no color, they are colorless, since they have no mana cost Lands usually have no color, they are colorless, since they have no mana cost
Magic spells are often thought to be fake, however there are many online sites that offer supposed real magic spells. One of the most popular websites is Spells of Magic.
No, you can't just make up magic spells, sorry. You have to be a witch or warlock to make magic work.
No. Magic spells are not real and do not work. You can not use magic spells for anything. It will NOT work.
Yes, when a stack is being formed, you may place as many spells or abilities on it as you can, before you allow your opponent the chance to do the same. He cannot interrupt this, he has to wait.
spells
No one. Spells and magic are not real.