Could I jump from the Moon and land back to Earth?
No. Moon gravity is about 1/6 of earth gravity, so assuming you can get your body to have the same kinetic energy on the moon as you can on earth, you would only be able to jump 6 times higher than you can on earth. So there is no way you could jump high enough to get to the “neutral” point between the earth and the moon where earth’s gravitational pull could start to accelerate you towards earth. The neutral point is about 43,000 miles above the moon.