Retirement tax questions

Wrong.  It is not other income.   It is retirement income and must be reported on line 15b, with a 1099-R.   See answer box.    When you receive the 1099-R you will need to amend to remove that and report it correctly.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**