Let me try to consolidate it all for you.
Yes, they are ALL tricks - humans are not able to do those things using their minds alone. And, no, I certainly do not know the full range of human capabilities BUT I do know some things are WAY beyond them.
Can you - or anyone else - cause you body to float up in the air by mind power alone? Can you hold your breath underwater unaided for an hour? Can you look at a tree and push it over with just your mind?
No one can do those things. That's what I mean by limitations - every one of those things is totally impossible.
All of those people are just magicians - illusionists - tricksters. like Houdini was and David Copperfield and others are today. Would you actually believe that Copperfield made the Statue of Liberty vanish? Of course not. And neither should you believe ANYONE can do all those outrageous claims they make.