I looked up on Google for help on how to turn it off and found this web site called 66Square Feet and they have a very simple explanation that I will copy and paste here for you so you can check and see if you have it on yours...
You cannot turn them off from the new interface.
Go to your old dashboard.
Find your old dashboard by clicking on the settings icon (little grey wheel/cog) top right of your new interface.
It will give you a dropdown menu.
Click on Old Blogger interface
From there proceed to Settings, then Comments.
Uncheck Word Verification.
It was so simple when I knew how!
Now on to Tim's March Tag:
Thanks for the visit, I really appreciate it.