Is the speed of light is the maximum speed possible.Actually,motion faster than light is exist and is rather common. nature only constrains the motion of mass and energy . However non material point and non energy transporting features and images can move faster than light .There are several simple example , to be clear that , we are not taking the proper velocity , which in this case cannot define anyway .The following example show speed that are genuinely higher than the speed of the light in vacuum.
At first consider the point at which scissors cut papers ; marked it as X ( it is the intersection point) if the scissors are closed rapidly enough the point will move faster than the speed of light . Assume a scissors with it`s blade 1.2 million meter long now as the blade will merge the closed point of contact will also move forward . Now assume the blade will totally merged at the time of 2 second so at this time the end point of contact as say X will move 1.2 million meters . So it is move 0.6 million meters in 1 second which is twice the speed of light as we know light will move almost 0.3 million meters per second.
Now take the example of the speed of the shadow , which is sometimes called the speed of the darkness . Both shadow and darkness can move faster than light . In fact there is no limit of there speed. Light travel at the fastest speed possible for a physical object . Darkness is erased when light appears and return when light leaves .The speed of dark thus the speed of light but there are other types of darkness which can move faster than light speed.
Across a distance a shadow can become much larger than the object creating it but still mimic it`s sources moving in the same way for the same amount of time .So when a shadow is bigger than the object creating it , it moves a greater distance when the object moves but in the same amount of time .
Make a shadow large enough and it can move faster than the speed of light across a surface , but it`s not a easy task . If you are on earth and can cast a shadow onto the surface of moon , that pointed from say point A to point B on the moon surface and then you move your finger . So that the shadow moved from point A to point B . Your finger only move a few centimeters in a fraction of second but the shadow that cast on the moon would move thousand of kilometers in the same amount of time . Ultimately we can say that in a second the shadow can move faster than light .