If I had Superpowers

If i had super powers, I would like to be able to teleport myself to any place that i want in this world, like in the movie 'Jumper'. I think it would be great to sit in your room and in the next minute stand on the top ot the Empire State Building. I also would like to turn back time, so I could fix some mistakes I did in the past or live some special moments again. Another power i would like to have is the ability of healing, so i could heal sick people and there would be less pain and diseases in the world.