light
The sailfish is the fastest swimming ´thing´on earth. It can reach speeds of 120 kph.
Tachyons are theorised to be the fastest particle in the universe their slowest speed being the speed of light. But until they are proven to exist, light is the fastest thing in the universe.
Imagination
No and never if you have a cough. No it's not a cultural thing and it's scientifically proven.
A meteorite .? :p
no, its not technically possible. in some religions there is such a thing as resurrection however proven scientifically wise, it simply a suggestion.
The peregrine falcon is the fastest animal on earth. It can fly at almost 400 km/hr. The cheetah is the fastest land animal.
Werewolves are commonly used in legend and fiction. However, whether one exists in real life has not been scientifically proven.
Any electromagnetic radiation, such as radio, heat, light, X-rays, etc.
THUNDER
yes. Electricity is the fastest thing on Earth
Scientifically when does a cell become a living thing