Think you’ve got what it takes to tackle some impossible riddles? Get ready to push your brain to its absolute limit! These mind-bending puzzles are designed to stump even the smartest problem solvers, but if you can crack them all, you’ll earn serious bragging rights. Whether you’re up for a challenge or just want to have fun, this is the ultimate test of your critical thinking skills. So, grab a seat, get comfy, and let’s see how far you can go. Ready to prove you're a riddle master? Let’s go! Animation is created by Bright Side. ---------------------------------------------------------------------------------------- Music from TheSoul Sound: https://thesoul-sound.com/ Check our Bright Side podcast on Spotify and leave a positive review! https://open.spotify.com/show/0hUkPxD34jRLrMrJux4VxV Subscribe to Bright Side: https://goo.gl/rQTJZz ---------------------------------------------------------------------------------------- Our Social Media: Facebook: https://www.facebook.com/brightside Instagram: https://www.instagram.com/brightside.official TikTok: https://www.tiktok.com/@brightside.official?lang=en Stock materials (photos, footages and other): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru ---------------------------------------------------------------------------------------- For more videos and articles visit: http://www.brightside.me ---------------------------------------------------------------------------------------- This video is made for entertainment purposes. We do not make any warranties about the completeness, safety and reliability. Any action you take upon the information in this video is strictly at your own risk, and we will not be liable for any damages or losses. It is the viewer's responsibility to use judgement, care and precaution if you plan to replicate.
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00:00Alex is a teenager living in New York City.
00:04His science teacher assigned him an interesting experiment, and Alex's mind was buzzing
00:09with possibilities.
00:11He ran home and found a huge watermelon in his mother's pantry.
00:15It was massive!
00:16When he weighed it, he found it was 100 pounds!
00:20He found out everything he needed about watermelons.
00:24The most important information was that watermelons were generally 99% water.
00:31For the experiment, he left the fruit drying out in the sun for a few days.
00:36With the help of a trusty weighing scale, he discovered that the watermelon was now
00:40only 98% water!
00:43To get a 10 in his science experiment, he needed to figure out the total weight of the
00:47watermelon after losing 1% of its water.
00:52Can you help Alex out with this one?
01:07Here's the deal.
01:08At first glance, this riddle sounds like a piece of cake.
01:11You might have guessed that the watermelon now weighed 99 pounds.
01:15But that's actually not even close!
01:18Let's work out the answer together.
01:20To solve the riddle, Alex should start by thinking about the non-water part of the watermelon.
01:26If the watermelon was 100 pounds and 99% water, then 1% of it was the actual fruit.
01:34So, 1% of 100 pounds is 1 pound of the fruit.
01:39After drying, the watermelon is 98% water, which means the 1 pound of fruit now makes
01:45up 2% of the total weight.
01:48So, if 1 pound is 2% of the total weight, we can call that total weight W.
01:551 pound of 2% of W, which is the same thing as saying that 1 pound equals 0.02 times W.
02:05To find W, we need to divide both sides by 0.02.
02:11So, if W equals 1 pound divided by 0.02, this means that W equals 50 pounds.
02:20Eureka!
02:21Alex had cracked the case!
02:23The once-100-pound watermelon now weighed 50 pounds!
02:30Cole invited his girlfriend Nikki over for a game night at his place.
02:35He told her he had a very difficult quiz prepared for her to solve.
02:40Cole showed her an empty triangular glass.
02:44He grabbed some orange juice and asked her when the glass would be closest to full.
02:49Measuring from the bottom of the glass to the top, Nikki had to guess the percentage
02:53of orange juice she'd have to pour in order for the triangular glass to be the closest
02:58as possible to half full.
03:01If you had to guess without any calculations, what would you say?
03:10This is tricky, but let's check out the answer.
03:17Intuitively, you might have thought that the answer was 50% of the height of the glass,
03:24but that's wrong.
03:25When 50% of its height is filled, it means there's only 12.5% of juice inside the glass.
03:33In a similar way, if the triangular glass was filled up to 70% of its height, this would
03:39mean that it is only 34.3% full.
03:44The answer we're looking for is 80% of the height of the glass.
03:49To solve this riddle, we need to remember a basic geometry formula that says that the
03:53percentage of the volume is equal to the cube of the percentage of the height.
03:58So, if we're looking for 50% of the volume, we're searching for nearly 80% of the height
04:05to make it equal.
04:07Got it, genius?
04:10It was a sunny day in Los Angeles, and Harry and Maria were planning their wedding.
04:16Maria was very nervous because she couldn't figure out the seating chart for their wedding.
04:22They had a hundred guests and had to distribute them around.
04:26To lighten up the mood, Harry remembered an old, difficult-to-solve riddle that would
04:30definitely take Maria's mind off things.
04:34He asked her if she could figure out the mathematical equation needed to get the number
04:39100 out of four nines.
04:42She could use the simple things such as addition, subtraction, division, and multiplication.
04:48The important part was that she got the number 100 out of it all.
04:51Can you help Maria out?
05:03The best way to solve these kinds of riddles is to start backwards.
05:07There are multiple ways to get the total of 100.
05:10Dare to join me in brainstorming the ways?
05:14You could simply add 99 plus 1, or 90 plus 9 plus 1.
05:18But that's not what the rules ask us to do.
05:21We need to use the number 9 four times.
05:25For example, 90 plus 9 times 9 divided by 9, well, this won't get us to 100.
05:33But what about 99 plus 9 divided by 9?
05:38I know we have two nines as one number, but that's okay by the rules.
05:42This way, you use all the four nines you need to use, although you are combining two nines
05:47into one number.
05:50But there are other possible answers.
05:52What do you say?
05:54Did you find any other answers to this crazy riddle?
05:59Once upon a time in a far away kingdom, Queen Matilda needed to hire a worker for a seven
06:04day project.
06:05The job was crucial, and she wanted to ensure the worker was paid daily.
06:10However, she could only pay him in gold bars, and she could only make a minimum of two cuts
06:16in her precious gold bar.
06:19Her plan was to pay him one seventh of the bar per day.
06:23Can you figure out how she could manage to do this, following the conditions we showed?
06:38Well, Queen Matilda is a very intelligent woman, so this is how she worked it out.
06:44She made two precise cuts in the gold bar, creating three pieces.
06:49The first piece was one seventh of the bar.
06:51The second piece was two sevenths, and the third piece was four sevenths.
06:58On the first day, the worker finished his shift, and Queen Matilda handed him the one
07:02seventh piece.
07:05On the second day, she swapped the one seventh piece for the two sevenths piece, so the worker
07:10now had two sevenths of the bar.
07:15By the third day, she gave him back the one seventh piece, resulting in the worker having
07:19three sevenths in total.
07:22On the fourth day, Queen Matilda took back the one seventh and two seventh pieces and
07:27handed over the larger four sevenths piece.
07:32On the fifth day, the Queen handed over the one seventh piece again, so the worker now
07:36had five sevenths of the bar.
07:39On the sixth day, the Queen took back the one seventh piece and gave him the two sevenths
07:44piece, resulting in the worker having six sevenths of the bar.
07:49Finally, on the seventh day, the Queen handed over the last one seventh piece, completing
07:54the full bar payment.
07:57And that's how Queen Matilda managed to pay her worker every day with just two cuts in
08:02the gold bar.
08:03Brilliant, right?
08:05Way to go, Queen M!
08:09Jake is on a bus, heading to visit his parents for the weekend.
08:13On another bus, coming from the opposite direction, is his brother, Max.
08:20Both buses are barreling down the road towards each other, each cruising along at 40 miles
08:25per hour.
08:26They started out at 40 miles apart.
08:29The brothers have been texting each other about their journeys, eager for the family
08:32reunion.
08:34As Jake stares out the window, he notices a little bird flitting around.
08:39His mind starts to wander, and he imagines the bird flying back and forth between the
08:43two buses, and wonders how many miles the birds would have flown back and forth until
08:48the buses meet each other.
08:50Can you help him out there?
09:01First, Jake figures out how long it will take for the buses to meet.
09:06Since both buses are driving at 40 miles per hour, their combined speed is 80 miles
09:11per hour.
09:12With the 40-mile distance between them, he divides the distance by their combined speed.
09:1840 divided by 80 equals 0.5 hours, or 30 minutes.
09:25Next, Jake turns his attention to the bird.
09:29He guesses the bird is flying at 50 miles per hour.
09:33Jake quickly multiplies the bird's speed by the time it takes for the buses to meet.
09:38This equals 25 minutes.
09:42So by the time the buses meet, the little bird will have flown 25 miles.
09:47Yikes!
09:48That's it for today!
09:50So hey, if you pacified your curiosity, then give the video a like and share it with your
09:54friends!
09:55Or if you want more, just click on these videos and stay on the Bright Side!