Kingdom of Knuffel

you are able to control a person's body temperature - to the point of killing them. Only one at a time

Hmmmm.
You look like you have the power of flight. Physics doesn't matter, so even as small as they are compared to your body mass, your wings let you soar through the air!

You have the power of unaided underwater breathing. The moment you submerge you switch from oxygen-gas-intake to water-processing. and it works even in the deepest bit of the ocean.

you make small snowman ghosts and control them!

You have the power of perfect preservation; one application of your power is good forever unless you deliberately remove it.

(Not that you want anyone to know about your powers, in case you are pressured to do weird things with it. Instead, you started a restaurant supply chain and are renowned for having the freshest spices, vegetables, fish, etc.)

the dream

you are able to manipulate emotions c: the only way to break from that spell is if that person fully realizes they are being controlled

Hmmm, I think you have petrification powers. When you want to, your gaze can turn someone to stone. You can reverse it too, which means that a lot of people who are ill come to you to be petrified in case a solution to their illness is available in the future. You've warned them and warned them that if you die before turning them back, they'll be stuck, and there's no guarantees, but people who are dying will cling on to any hope, so they still come to you.
Eventually you decided to organize it properly and made them all sign release forms and pose in funny ways and then opened a statuary park where all the income from the tourism goes to fund medical research, in hopes of actually being able to solve some of those problems.

You have the power of turning colourless objects (grey/black-and-white) into beautifully coloured ones, just by waving xour hand. This comes in handy when you help restore faded paintings and book-illustrations.

You have a superpower that know one, even you, knows about:
every time you make a pun, the world splits into different timelines, one for each possible meaning of the word in the pun you made. Since the you in each timeline can't perceive the others and thinks they are living in the only world, this power has gone undiscovered.
But it will save the universe when the "World-eaters" arrive, because only with the power of so many different timelines will the solution to defeat them be found!

your superpower is kindness