No, not the same. "Anyone" means a person, whose existence or identity is not established. "No one" means there is definitely no such person. It may be easier to start thinking about the difference among: "Everyone" -- all people in some group that you have in mind, e.g. "Everyone in the class" means all people in the class. "No one" -- none of those people "Someone" - one of those people, but we're not saying who "Anyone" - possibly any of those people -- none, one, more, or indeed all "Anyone is often used in questions: "Did anyone call?" Also "anyone" is used in a hypothetical situation such as "anyone could have broken in" or "anyone can learn to play the piano", in which case it means that it is not established who that person or those persons are.

No, they are completely different! I guess that there may be situations where you can use either, but in general, they are not the same. Any one = Any person. e.g. "Can anyone help me?", "Anyone can comment on this project". no one = Nobody, no person. e.g. "no one knows when they will die", "no one has been to mars".

No, they're not the same. But I will let someone else explain it to you. Regards.

cualquiera = anyone (Cualquier persona va a comer dulces) nadie = no one. (cero personas, zero people. A nadie le gusta el brócoli)

anyone (in question) example:can anyone help me? and no one is nadie