How to return a sphere on itself (like a glove)

[sergeA]

How to return a sphere on itself (like a glove), and what it's look like?

I don't even know if it's possible!

I'm curious to know if a solution already exist?
I post this in Advance math problem, because, if Mathematician can "compute" a 4th dimentionnal "cube"... (a Tesseract)

Maybe they can figure this out!

Hope you will love this challenge, question!?

 

[stapel]

How to return a sphere on itself (like a glove), and what does it look like?

Please reply with the full and exact text of the exercise, the complete instructions, and your area of study. For instance, what does your book mean, precisely and mathematically, by "returning" a figure "on itself"? What sort of geometry are you studying?

When you reply, please include a clear listing of your thoughts and efforts so far. Thank you!