For the book by Alphonse Allais, see Deux et deux font cinq. For the Radiohead song, see 2 + 2 = 5 (song). Two Plus Two Make Five (1895), by Alphonse Allais, is a collection of absurdist short stories about anti-intellectualism as politics. 2 + 2 = 5 or two plus two equals five is a mathematical falsehood which is used as an example of a simple logical error that is obvious to anyone familiar with

For the economic effect sometimes called the potato effect or potato paradox, see Giffen good. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Potato paradox" – news · newspapers · books · scholar · JSTOR (January 2021) (Learn how and when to remove t

This article is about a phrase used on maps. For other uses, see Here be dragons (disambiguation). The text Hic Sunt Dracones on the Hunt–Lenox Globe, dating from 1504 "Here be dragons" (Latin: hic sunt dracones) means dangerous or unexplored territories, in imitation of a medieval practice of putting illustrations of dragons, sea monsters and other mythological creatures on uncharted areas of map

A recreation of a scene from the report, showing a woman harvesting cooked spaghetti from the branches of a tree The spaghetti-tree hoax was a three-minute hoax report broadcast on April Fools' Day 1957 by the BBC current-affairs programme Panorama, purportedly showing a family in southern Switzerland harvesting spaghetti from a "spaghetti tree". At the time of the report's broadcast, spaghetti wa

Map folding for a 2×2 grid of squares The discipline of origami or paper folding has received a considerable amount of mathematical study. Fields of interest include a given paper model's flat-foldability (whether the model can be flattened without damaging it), and the use of paper folds to solve up-to cubic mathematical equations.[1] Computational origami is a recent branch of computer science t

An example of the Scunthorpe problem in Wikipedia because of a regular expression identifying cunt in the username The Scunthorpe problem is the unintentional blocking of online content by a spam filter or search engine because their text contains a string (or substring) of letters that appear to have an obscene or otherwise unacceptable meaning. Names, abbreviations, and technical terms are most