Cannot adjust column size in numbers

The image in your post appears to show two tables, one in front of the other, with the content of one table showing through the cells (and their content) of the other. Some rows of the one table appear offset up or down from the other's, and several column boundaries on one table are likewise not aligned with those of the other table.

In the column containing 'names' there appears to be some scribbling. Does this have a purpose?

Would you like to get your head together, lose the rant (such as it was) and write a clear and simple description of what you are attempting to do, what part of that attempt has failed, and a straightforward question regarding what you need help with.

Regards,

Barry

I am really not sure what you are doing. In the screenshot below I merged the header cells for C and D. The column letters still appear at the top. Hover your mouse on the line between the C and D at the top until you see the arrows appear then click and drag left/right to adjust column C. Do the same on the line between D and E to adjust column D. And so on.

To get rid of the table that appears to be in front of the other one, click it, then the "bulls-eye" concentric circles upper left and drag that off to another place on the canvas. Or click the bulls-eye and hit delete.

SG

I was kinda ignoring the image. I have no idea what's going on there. With all the lines and arrows and shapes I thought maybe it was trying to show "before and after" or something but maybe it actually is two tables overlapping like you think.