Extracting number from a range randomly

[Goalexcel]

Hello Expert, please kindly advise what is the best method to extract numbers from a range randomly
I have a series of numbers in the range of A1 to T16. I would like to extract 3 differents numbers from each columns, and place them in column A21, B21so on. I wonder. if there is a way to do that easily.

 

[Peter_SSs]

@Peter_SSs , can kindly ask you for help to make work with macro attached excel file

I have no idea what that means. In what way is the code that you marked as the solution to the thread not working?