Translation of "Most" into Hindi

I don't think he took me very seriously, because most actors say they can do most things.

Brazil is among our most important economic partners in Latin America.

The most volatile areas are most peaceful.

It's really the most scary thing.

In most hospital and medical settings in the U.S., needle safety regulations are maintained through individual needle safety devices and needle disposal boxes.

The most expensive thing is the battery inside this.

Please choose * at most *.