The correct answer would be your brain, but I'm guessing thats not what you are going for with this, so for vision the sense organs would be your eyes, for your hearing it would be your cochlea, do not say ears, they actually have very little to do with actually hearing. For smell there is a small patch of cells at the top of your nasal cavity called the cribiform plate that is attuned to substances in the air that we perceive as smell. For taste, go with taste buds on the tongue. For touch there are a number of receptors in your skin (skin being the best general answer to your question) that are capable of relaying information about heat, cold, pressure, pain, and in some instances itch and tickle are included. Collectively these are referred to as somatic senses.