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topics make navigating answers a breeze. from algebra to zoos, we've got a topic for you.

celebrities often go through a great deal of trouble to make themselves look young. if you're wondering how old a celebrity is, when they were born or when they died, this is the place to ask.

1,510,165 questions

math is the study of abstractions. math allows us to isolate one or a few features such as the number, shape or direction of some kind of object. then we can study what can be learned about the behavior of those features while ignoring everything else about the object.

1,187,572 questions

actors and actresses are individuals who act or play in a dramatic production. the term also refers to those who play parts in movies, television, radios, or theaters. some of hollywood’s famous actors include brad pitt, angelina jolie, and tom cruise.

802,790 questions

celebrities are persons easily recognized in a society or culture. most of today’s celebrities are popular personalities from the movie and music industries. lady gaga, justin bieber, daniel radcliffe and robert pattinson are some of today’s hottest celebrities.

659,497 questions

includes questions about the lives and families of writers as well as about their written works.

526,302 questions

television shows are segments of contents aired on televisions. they can be a one-off broadcast, or a part of a recurring television series. tv series are intended to be aired in several episodes.

501,397 questions

this category encompasses all questions about the composition, structure, properties, and reactions of matter.

493,479 questions

this category is for questions relating to the history of baseball such as team origins, player records and origins of baseball terms.

493,174 questions

movies are a dramatized representation of reality. they often have many literary elements, and usually are very entertaining. ask questions here related to feature films and cinematic history.

483,345 questions

the observation, identification, description, experimental investigation, and theoretical explanation of phenomena is all part of science. nothing is immune to the scientific process: from charm quarks that haven't existed naturally since the beginning of time to pluto, recently demoted from planet to dwarf planet. questions on knowledge about the material and physical aspects of our world are asked and answered here.

474,454 questions

video games are a type of interactive entertainment software. they are designed to run on a computers, phones, tablets, and gaming consoles. they come in many forms. some are cartridges, while others may be discs or apps. there are several genres of video games. some are educational, and some are purely guilty pleasures. a few types of video game are role playing (rpg), shooter, sim, and puzzle.

387,795 questions

questions about the game of scrabble, the crossword-like word game. super scrabble questions are also appropriate. questions about the electronic versions of scrabble may be included here as a second category, but would be more appropriately be placed in a video games category.

339,009 questions

a truly healthy person has a sound body and mind that is free of disease and infirmity. healthy living includes taking the steps needed to optimize one's chances of surviving and thriving, like eating a healthy diet and exercising regularly. questions relating to all aspects of health and living a healthy life are welcome here!

328,761 questions

animals enrich our lives in so many different ways. the animal life category is for questions and answers about animals of all types, including pets, sea life, and farm animals. you can ask questions or find information regarding animals, their history, care, health issues, breeding, and behavior.

298,424 questions

find questions about the important events of the united states of america from the us civil war to us presidents.

276,667 questions

the use of letters to substitute unknown numbers to form an equation. solve the equation to get the unknown number using different methods such as simultaneous equations and more.

273,445 questions

physics regards the physical aspects of the natural world. it includes topics that deal with forces on different bodies within the universe and phenomena that explain how the universe works.

252,997 questions

sports include physical recreational activities that have elements of competition/struggle and play. they often involve spherical objects of different types, but can involve a remote control, a couch and a bag of chips. here you'll find questions and answers about popular sports in the world; including information on players, teams, results, statistics, records and related topics.

251,112 questions

geometry = math of euclid. geometry is the branch of math known for shapes (polygons), 3d figures, undefined terms, theorems, axioms, explanation of the universe, and pi.

238,855 questions

this category is for questions and answers about forms of books and literature. the categories subtopics include authors, poetry, plays, classics, and many other literary elements.

231,981 questions

biology is a branch of science that studies the nature of life from the smallest parts of living things to the largest plants and animals. ask and answer questions about the living world and its wonderful inhabitants in this category!

224,702 questions

music consists of sound mixed with elements including pitch, rhythm, and tempo. here you can ask questions about music and the hottest songs of today and yesterday.

223,503 questions

this section covers topics of genetics such as variation, pedigrees, mendelian genetics and mutations.

214,731 questions

'history, politics and society' deals with the affairs of human beings. the categories overlap to a degree: 'history' describes changes in those affairs, and encompasses the other two; 'politics' is about how people govern themselves; and 'society' is about how people organize and conduct their lives. questions here range from ancient history to history-in-the-making, political views to decisions of lawmakers, and present and past societies and how people relate to each other within their societies.

210,487 questions

information about all types of vehicles; including cars and trucks manufactured around the world, motorcycles, airplanes,and other modes of transportation, is found here. if you need to know the best truck for off-road use, how to make a vehicle sound like it has more power than it really does, if filling up a gas tank when it s half full is really beneficial, or anything concerning vehicles, this is the place to ask!

204,645 questions

the category includes questions about the various ways in which humans measure objects or concepts. this category is also home to conversions between units such as grams to pounds or liters to milliliters.

190,256 questions

relationships include parent/child, sibling/sibling, friendship, dating, marriage, and lots of others. they can be great, but many times they are problematic and can be unhappy or even abusive. this category is for questions about relationships, both good and bad.

184,253 questions

a population refers to the collection of organisms that belong to similar species and live in a single geographical area at a specified time. an example of a population is all the people residing in the united states.

181,765 questions

conditions and diseases include everything from aches and pains to broken bones, chronic conditions to life-threatening diseases, symptoms and possible causes, and much more. questions range from what causes hair to turn grey, possible causes of pains, origins of viruses, and anything to do with conditions and diseases associated with health.

176,062 questions

questions about the properties and characteristics of elements as observed in nature and in compounds. chemical formulas are also converted to and from symbols in covalent or ionic bonds. all the questions you want to ask about the elements and the compounds they form.

175,672 questions