What is the exact difference between force and torque?

Yes. Angular Velocity is a vector quantity i.e. it has directions. The direction of rotation can influence the sign of angular velocity's value. If the movement of the object is anticlockwise, the sign will be positive. Similarly, if the movement of the object is clockwise, the sign will be negative

Even if the torque is same, the rotation of a body can be slow or fast depending on the distribution of mass along the surface area. If the mass of a body is more on the axis area, it's speed of rotation will be faster as compared to the body whose mass is accumulated away from the axis due to which