when someone gets married in their sixties do one of the married couples loss their social security. Or do they still remain getting their individual SS checks?

You don't lose your Social Security until you die. There are really great people at the Social Security Administration who will answer all your questions about your Social Security. Google Maps can show you all the offices near you and there are plenty! So check with Google Maps and call and office near you to make a reservation for a meeting or just talk to them on the phone. Google Maps will give you the phone number.

You get to keep your own ss, and if you're spouse dies you get their's too