It is illegal to hace _ emergenci lights on you chicle

It's not illegal, but never have them on while driving unless you need to warn drivers behind you of a hazard or you're carrying something like for example: On freeways there are some semis and regular trucks who are hauling something/s and need to warn people that it's hazardous or to be careful when passing

It’s not illegal to do so

Answer the car approaching from the right has the right of way;

Answer(18);