How to display fields on the form in columns?

In addition to asking for only one answer in each row, can I also have only one answer in each column at the same time?

I understand that you want to display the questions in columns. You may display the questions to display them in the same row by using Shrink option from the field properties.

https://www.jotform.com/help/90-Form-field-positioning

You can also enable the Form columns option in the Form Designer to display the shrunk fields correctly.

Hope this information helps! Let us know if you are referring something different. We will be happy to help.