Then our Universe would be quite different than it is.
we would be all screwed
No.
It is impossible to move faster than light, as your mass increases as your speed approaches that of light. The Speed of Light would mean infinite mass, which it is impossible to make faster.
No, you can't go faster than the speed of light. This is because you would need an infinite amount of force to accelerate an object to a velocity faster than the speed of light.
It travels faster in a liquid than in a gas, but it would travel faster still in a solid.
it is impossible to fire a bullet a the speed of light
No one can tell. Our current understanding of physics and how the universe works pretty much stops at light speed. So what would actually happen if you managed to perform the impossible - go faster than light - no one can tell.
No. It's not possible to go faster than the speed of light. The speed of light takes all the energy in the universe and if you somehow did manage to get going that fast you would cease to exist.
According to special relativity, nothing can travel faster than the speed of light. The formula E = mc2 does not directly show that a body cannot travel faster than the speed of light, but if it did travel that fast, its energy would be so high that its mass would also have to be very, very large.
No such thing would happen. Matter cannot reach the speed of light, only massless things can (and they cannot travel at any other speed than the speed of light).
Modern understanding of the physical world holds faster-than-light travel to be impossible. However, were it to be accomplished, the observed effect would likely be similar to that of someone traveling faster than the speed of sound; they wouldn't see you coming, but after you passed, they would experience a high-intensity, broad-band electromagnetic burst, similar to a sonic boom: They can't hear you coming, but after you pass, there's an intense shock wave in the air. Also, outside observers for objects traveling close to the speed of light see the flow of time in the object slow down. Equations predict that at the speed of light, time inside the light-speed body would appear to stop when observed from outside the light-speed body. If this trend continued past the speed of light, a paradox would seem to occur, where the events in the faster-than-light body would appear to 'un-happen'.
You cannot even travel at the speed of light. So forget about going faster.