I mean they could do these things with a certain level if mastery and power level. The last one seems the hardest to accomplish I think.

Let's just say it won't be easy

No and no

Telekinesis moves physical matter be it gas, liquid and solid and can't affect objects with no Mass

They are various teleportation methods like bending space time or molecular teleportation they don't allow you to go to people's dream unless the dream is another dimension you can't literally teleport to someone mind no matter the mastery

But absolute teleportation can do it