Your world of imagination.
Books and stories.
Your dream world.
If I had super powers, I would be feared by the governments of the world.
no, no one in the world has super powers
"Who taught mutants how to use their super powers to benefit the world?"
You cannot. Super powers are not possible in the real world.
At the first place, super powers like what Superman has is fictional. But a person can have a super power by your abilities. You abilities can be your super powers! You can change the world with your abilities. You can help people and be a hero by your abilities. The super powers you are searching is hidden within yourself. Just believe in yourself and in your abilities and you can have the super powers you are searching for!
USA and USSR
No such thing as super powers. Well there isn't any super powers in the world but there is other senses. Seeing, Hearing, Listening, Touching and Feeling. There are powers that are phycic abilities which everyone has but not offten.
There is no scientific evidence to support the existence of individuals with supernatural abilities or superpowers. Such powers are typically attributed to fictional characters in movies, comic books, and other works of fiction.
Super Powers
Do you mean accidentally? Or like surgery to give you super powers? I guess surgery could make you stronger, but stuff like radiation would more likely kill you than give you super powers. So I think you're out of luck.
Yes
The USA and the USSR