What I Don't Know, And Neither Do You

Following are links to what science still does not know.  Come back periodically, as the list may grow.  (Note: there is some overlap)

If you think you have an answer to any of these unknowns, you are presenting the Argument from Ignorance, or the God of the Gaps argument if the answer is God.

https://www.theguardian.com/science/2013/sep/01/20-big-questions-in-science

https://www.newscientist.com/article/mg18524911-600-13-things-that-do-not-make-sense/

http://io9.gizmodo.com/8-things-we-simply-dont-understand-about-the-human-brai-949442979

http://news.nationalgeographic.com/news/2011/08/110824-earths-species-8-7-million-biology-planet-animals-science/

http://www.mindopenerz.com/5-mind-blowing-things-science-still-cant-explain/

http://www.futuristspeaker.com/future-scenarios/10-unanswerable-questions-that-neither-science-nor-religion-can-answer/

http://listverse.com/2015/04/10/10-fascinating-mysteries-of-life-that-science-cant-explain/

http://www.iflscience.com/physics/top-10-unsolved-mysteries-science

http://www.cracked.com/article_19442_8-simple-questions-you-wont-believe-science-cant-answer.html

http://science.nasa.gov/astrophysics/focus-areas/what-is-dark-energy/

http://www.livescience.com/34095-biggest-mysteries-human-body.html