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02:51
The Horse Horseshoe Boots Viral Algebra Problem  The Correct Answer Explained
587 views / 1 likes  addedA lot of people are arguing over the correct answer to this algebra problem involving horses, horseshoes, and boots. A Facebook post with this problem has over 500,000 comments. Can you figure it out? In this video I explain the correct answer. Blog post:

02:06
Can You Solve The Viral Matchstick Puzzle 6 + 4 = 4?
469 views / 0 likes  addedCan you fix 6 + 4 = 4 by moving 1 matchstick? This problem has gone viral on Facebook, with one post having over 400,000 shares. The ground rules are you cannot break a stick, it should be an equality (=), and you have to use 7segment numbers (the block

11:27
Can You Solve The Viral 11x11 = 4 Puzzle? The Correct Answer Explained
609 views / 1 likes  addedIf 11x11=4 and 22x22=16, what is 33x33=? This puzzle has been shared with the claim that only geniuses can solve it. It has gotten millions of views on the internet and Facebook as people have debated the correct answer. In this video I present what many

07:39
Can You Solve The Alien Extinction Riddle? Hard Job Interview Question
341 views / 0 likes  addedA single alien lands on Earth. Every day after that, each alien on Earth undergoes a transformation, which could be any of the four equally likely events: (a) the alien dies, (b) the alien does nothing, (c) the alien replicates itself (2 aliens total), (d

11:57
The Wallis Formula For π
186 views / 0 likes  addedStart with the pair of fractions (2/1)(2/3). Now increment each number by 2 to get the pair of fractions (4/3)(4/5). Repeat this to get the next pair, and repeat this infinitely many times. If you then multiply all the fractions, you get a marvelous value

07:40
Can You Solve The 21 Flags Game From Survivor?
256 views / 0 likes  addedContestants on the TV show "Survivor" faced off in a series of challenges for a grand prize of $1 million. Most of the challenges were physical like hiking many miles or diving underwater. But one challenge was mathematical. The game had 21 flags and cont

05:57
Can You Solve This 6th Grade Geometry Problem From Singapore? The Area Of A "Claw"
510 views / 1 likes  addedThis problem was given to Primary 6 (age 1112) students in Singapore. What is the area of the shaded region in the video, which consists of the region bounded by 4 quarter circles in a 3x3 grid of squares, and each square has a side length of 4? The shad

03:48
Can You Solve This Harvard Admissions Question? Algebra Problem, 1869
325 views / 0 likes  addedThe Harvard admissions exam in 1869 included this algebra problem: "A man bought a watch, a chain, and a locket for $216. The watch and locket together cost three times as much as the chain, and the chain and locket together cost half as much as the watch

03:54
What's The Best Soup Can Size? The Optimal Cylinder Puzzle
237 views / 0 likes  addedA cylindrical can with volume V can be made in different ways. The cylinder can be wide and short (large radius and small height), or it can be narrower and taller (small radius and larger height). Which shape uses the least material? That is, which can h

07:47
Can You Solve The Probability The Newborn Is A Boy? Many Fail This Interview Question
334 views / 0 likes  addedThis problem has been asked in job interviews. On the morning of January 1, a hospital nursery has 3 boys and some number of girls. That night, a woman gives birth to a child, and the child is placed in the nursery. On January 2, a statistician conducts a

02:45
The Day After Tomorrow Is Yesterday Riddle. Can You Solve It?
292 views / 0 likes  addedThis puzzle is popular on Facebook and many other sites. "When the day after tomorrow is yesterday, then today will be as far from Wednesday as today was from Wednesday when the day before yesterday was tomorrow. What day is today?" Can you solve this tri

09:11
Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer
340 views / 0 likes  addedStart with a unit square (a rectangle with both sides equal to 1, call it R1). Attach a rectangle of area 1 to its right side, then attach a rectangle of area 1 to its top. The border of this new shape is another rectangle, call it R2. We can repeat the p

04:30
Adults Are Arguing About This 3rd Grade Math Problem
310 views / 0 likes  added"If Sue runs around the track twice, and John runs around the track four times more than Sue, how many times does John run around the track?" This problem was given to 3rd graders. A parent disagreed with the answer the teacher was marking. After it was p

07:49
Can You Solve The Viral 9 = 72 Puzzle? The Correct Answer Explained
415 views / 0 likes  addedThis problem has been shared millions of times on Twitter/Facebook with the claim "99% fail" to solve it and that only a genius could find the correct answer. If 9 = 72, 8 = 56, 7 = 42, 6 = 30, 5 = 20, then 3 = ? In this video I explain what many people b

04:13
Can You Solve This Grade 12 Geometry Problem From Australia? The Marshmallow Chocolate Puzzle
278 views / 0 likes  addedA marshmallow has the shape of a cylinder with diameter 5 and height 3. A dessert is made with 24 marshmallows: there are two stacked layers of marshmallows, and each layer has 3 rows of 4 marshmallows. The gaps between the marshmallows are filled with ch

05:27
Can You Solve The MindBending SelfCounting Sentence Riddle?
404 views / 0 likes  added"In this sentence, the number of occurrences of the digit 0 is __, of the digit 1 is __, of the digit 2 is __, of the digit 3 is __, of the digit 4 is __, of the digit 5 is __, of the digit 6 is __, of the digit 7 is __, of the digit 8 is __, and of the d

06:18
Can You Solve The Diluted Wine Puzzle?
254 views / 1 likes  addedA servant has a method to steal wine. He removes 3 cups from a barrel of wine and replaces it with 3 cups of water. The next day he wants more wine, so he does the same thing: he removes 3 cups from the same barrel (now with diluted wine) and replaces it

06:24
Can You Solve The Missing Sock Puzzle?
230 views / 0 likes  addedA statistician keeps a simple wardrobe. He only purchases pairs of black socks and white socks, and he keeps all of the socks in a pile in the drawer. Recently one of the socks was lost in the laundry. The socks have a mathematical property. If you select

03:16
Can You Solve This 8th Grade Geometry Problem? 75% Got The Wrong Answer
268 views / 0 likes  addedWhat is angle A in the starshaped figure? This problem appeared on the 1999 AMC 8 test (intended for 8th grade students in the US). Approximately 75% of testtakers did not mark the correct response. Can you figure it out? Watch the video for a solution.

03:51
Can You Solve This MIT Admissions Question? Geometry Problem, 1869
320 views / 0 likes  addedThe Massachusetts Institute of Technology (MIT) is one of the top ranked universities in the world. This question appeared on its admissions exam nearly 150 years ago. "The perpendicular dropped from the vertex of the right angle upon the hypotenuse divid

06:34
How Will Earth Change If All the Ice Melts?
177 views / 0 likes  addedSeeing An Inconvenient Sequel is taking action, get tickets to see it in select theaters now & everywhere Aug. 4th: https://fandan.co/2ucigMW #BeInconvenient Please Subscribe: http://bit.ly/2dB7VTO Patreon: https://www.patreon.com/RealLifeLore Music is by

05:29
This AI Doesn’t Need Any Help from Humans
148 views / 0 likes  addedScientists have developed a new AI that can teach itself how to be the master of an ancient board game. We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Stefan

03:00
Multiply Numbers By Drawing Lines
279 views / 0 likes  addedGow to multiply numbers by drawing lines. Get the Multiply By Lines Book! https://www.amazon.com/gp/product/1500866148/ If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions Connect on social media. I update each s
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05:00
Dinosaurs Had a Bloodsucking Enemy
226 views / 0 likes  addedThis week, scientists revealed a sample of amber containing an extinct tick that fed on dinosaurs. Unfortunately, we can't take a blood sample from it and make Jurassic Park a reality, but it can still tell us a lot about how dinosaurs (and their parasite

04:38
The Trick to Not Freezing During Hibernation
199 views / 0 likes  addedYou may wish that you could pack on a few pounds and sleep the next few months away, and scientists are one step closer to understanding how some animals are capable of doing this. If you want to learn more about ancient animals or paleontological science

03:47
What Is The Most Dangerous Sport In The World?
236 views / 0 likes  addedSports can be deadly  what is the most dangerous sport?! Subscribe, it's free! http://bit.ly/asapsci Created by: Mitchell Moffit and Gregory Brown Written by: Tharsan Kana, Rachel Salt, Mitch Moffit & Greg Brown Illustrated by: Max Simmons Edited by: Sel

08:04
That Time It Rained for Two Million Years
428 views / 2 likes  addedCheck out our NEW POSTER: https://store.dftba.com/products/eonsposter At the beginning of the Triassic Period, with the continents locked together from poletopole in the supercontinent of Pangea, the world is hot, flat, and very, very dry. But then 234
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10:19
When Fish Wore Armor
132 views / 0 likes  addedCheck out Hot Mess: https://www.youtube.com/channel/UCsaEBhRsI6tmmz12fkSEYdw 420 million years ago, some fish were more medieval. They wore armor, sometimes made of big plates, and sometimes made of interlocking scales. But that armor may actually have se

14:53
THE SCUTOID: did scientists discover a new shape?
162 views / 0 likes  addedRead the Nature paper for yourself: "Scutoids are a geometrical solution to threedimensional packing of epithelia" https://www.nature.com/articles/s41467018053761 Thanks to Laura and Clara for helping me with the video! You can download Laura's model

07:00
What sounds did dinosaurs make? ft. Joe Hanson
264 views / 2 likes  addedDespite what you’ve seen in the movies, dinosaurs probably didn’t roar. And they may have come in a rainbow of colors. Subscribe to Science Magic Show Hooray! https://bit.ly/2LLNAci Follow me to It's Okay To Be Smart! https://youtu.be/gQJHuG1Byj0 Fossil e
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04:11
Why Twisted Light Holds the Key to Radically Faster Internet
52 views / 0 likes  addedWith this new nanophotonic device, scientists might have just unlocked how to harness the data transfer potential of “twisted light”. How Ferroelectricity Could Change the Way We Store Data https://youtu.be/IwT_ECJ1TEY Read More: Angularmomentum nanomet

03:26
What Would a 24 Hour Flight Do To Your Body?
70 views / 0 likes  addedThis is a different kind of 24 hour challenge. Some people fly great distances to get to where they need to go, but what might you experience if you were in the air for a full 24 hours? Watch more: “Could You Survive A Plane Going Down?” ►►https://www.you

01:13
These falling drops don’t splash—they spin
54 views / 0 likes  addedUnique surface makes water drops do the twist Read the story: https://www.sciencemag.org/news/2019/03/thesefallingdropsdontsplashtheyspin Read the research: https://www.nature.com/articles/s41467019089192 About Science Snippets: These videos are

05:01
Can a Virus Get a Virus?
47 views / 1 likes  addedCan a virus get a virus? This video was sponsored by LastPass! Check out LastPass here: https://lastpass.onelink.me/HzaM/AprilLifeNoggin Subscribe: https://bit.ly/SubLifeNoggin  Get your exclusive Life Noggin merch: http://keeponthinking.co Follow Life N

05:24
How Measles Vaccines Protect You From Other Diseases
56 views / 0 likes  addedGo to http://Brilliant.org/SciShow to try out Brilliants Daily Challenges. The first 200 subscribers get 20% off an annual Premium subscription. Since measles vaccines started making their rounds, child mortality has dropped by up to 90% percent in some c

07:27
Don't Worry About That Asteroid That Might Hit This Year  SciShow News
48 views / 0 likes  addedSkillshare is offering SciShow viewers two months of unlimited access to Skillshare for free! Try it here: https://skl.sh/scishow16That asteroid the headlines have been warning people about isn't likely to actually hit us, and scientists might have solve

09:34
Five Cute Critters That Can Kill You
5 views / 0 likes  addedTo explore the music theory, production, history and culture behind our favorite songs and musical styles, check out Sound Field from PBS Digital Studios: http://youtube.com/soundfieldpbsDont let their cuteness fool youthese animals are not to be messed
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