What are some examples of common knowledge?

Why does the stream of water travel farther when the nozzle of a hose is partially closed? How many significant digits does 780 have? What should the setting be for 13-13-13 fertilizer on a Scott 3000 speedy green broadcast? What is duct in anatomy? In the realm of scientific inquiry making an observation typically leads to? Why do fluids exert more force the deeper you go? You wonder if the universe has more living creatures other than us? How does the Green revolution effect the cold war? What would it be like without friction to pick up a pencil? What although some questioned the validity of the man's claim in my mind the truth of the matter was indubitably clear? Can you scratch plaster with a fingernail? What is the name of the smallest particles of matter? What math words start with the letter A? What term is used to Refer to broad classes that characterize like resources Such as teams e? Can not getting enough oxygen make you sleepy? What does km mean in measurement? Why do scientists repeat their tests? What are all the types of baggies? What effect does latitude have on temperature on the ocean? What are three types of extreme environments can archaebacteria survive?