http://www.richannel.org/the-coastline-paradox
https://en.wikipedia.org/wiki/Coastline_paradox
http://legacy.earlham.edu/~peters/writing/psa/sec20.htm#A
http://sutherland-careers.com/blog/paradox-puzzle-friday/
http://www.nerdovore.com/2013/01/the-unstoppable-force-vs-immovable.html
http://news.nationalgeographic.com/news/2013/08/130812-physics-schrodinger-erwin-google-doodle-cat-paradox-science/
https://www.decodedscience.org/the-paradox-of-the-infinite-series-of-square-numbers-by-galileo/2840
https://en.wikipedia.org/wiki/Galileo%27s_paradox
https://www.revolvy.com/main/index.php?s=Moravec%27s%20paradox&item_type=topic
https://en.wikipedia.org/wiki/Moravec%27s_paradox
https://en.wikipedia.org/wiki/Problem_of_evil#Logical_problem_of_evil
https://en.wikipedia.org/wiki/Potato_paradox
https://en.wikipedia.org/wiki/Gabriel%27s_Horn
http://awesci.com/gabriels-horn-and-the-painters-paradox/
http://www.newworldencyclopedia.org/entry/Penrose_triangle