If the resultant torque of all the forces acting on a body is zero about a point is it necessary that it will be zero about any other point?

If the angular momentum of a body is zero about some point. Is it necessary that it will be zero. About a differet point?

A body is in translational equilibrium under the sctin of coplanar forces. If the torque of these force is zero about a point is it necessary that it will also be zero abut any other point?

If the angular momentum of a body is found to be zero about a point is it necessary that it will also be zero about a different point?

The moment of the force F acting at a point P, about the point C is

If the sum of all the forces acting on a body is zero, is it necessarily in equilibrium ? If the sum of all the forces on a particle is zero, is it necessarily in equilibrium?

If net external force acting on the system is zero then

If the resultant force on a system of particles is non-zero, then:

If the torque on a body is zero, then?

Calculate the total torque acting on the body shown in figure about the point O.

If the resultant of all the external forces acting on a system of particles is zero. Then from an inertial frame, one can surely say that