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Ready to test your brainpower? These critical thinking riddles will challenge you to think outside the box and prove you’ve got the genius mindset!

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Transcript
00:06A man is trapped in a room that only has two possible oxids.
00:10The first door leads to a room made out of magnifying glass.
00:13The blazing hot sun instantly fries anything or anyone that enters that place.
00:19Behind the second door, a fire-breathing dragon is hiding.
00:22Does the man have any chance to escape unharmed?
00:34Well he just needs to wait until nighttime and then leave through the first door.
00:41This princess urgently needs your help.
00:44Can you help her find her frog prince among all these other frogs?
00:47Look, the princess is carrying a picture of the frog she's looking for.
00:51It can help you spot the right one.
01:02Here he is, in the bottom right corner.
01:06I come out every night without being called.
01:09I am lost in the day without being stolen.
01:12What am I?
01:22If you think it's a star, you're absolutely right.
01:27I have a speed of almost 100 miles per hour, but I don't leave the room.
01:32You can cover me, but it won't prevent me from continuing ahead.
01:36I don't plan my visits.
01:37I can arrive at any moment at any time of the year.
01:41What am I?
01:51I'm a sneeze.
01:55Each of the five neighborhood dogs is enjoying one of the following activities.
02:06Pepper is either playing catch or hiding a chew toy.
02:09Neither Ginger, nor Sabre, nor Bear is on a walk.
02:13One of the dogs named after a Spice is getting its ears scratched.
02:18A dog not named after a Spice is playing catch.
02:21Bear is getting some exercise.
02:23Can you figure out what each pooch is doing?
02:35Sabre is taking a nap.
02:37Ginger is getting its ears scratched.
02:39Nutmeg is going for a walk.
02:41Pepper is hiding a chew toy.
02:43And Bear is playing catch.
02:46The combined weight of a cat and a guinea pig is 10 pounds.
02:50The weight of a dog and a guinea pig is 20 pounds.
02:53And the weight of a cat and dog is 24 pounds.
02:57Can you figure out how much each of the animals weighs and determine their common weight?
03:11The cat weighs 7 pounds.
03:13The guinea pig weighs 3 pounds.
03:15And the weight of the dog is 17 pounds.
03:18It means all animals will weigh 27 pounds.
03:24Ben and Grace are having a party.
03:26They're both preparing meals at the same time.
03:29Grace is at the grill and Ben is in the kitchen.
03:31But one of them is doing something wrong.
03:34Who is it?
03:44It's Ben.
03:45His stove is off.
03:47Then, how is he cooking?
03:50Five friends came to Kim's sleepover party.
03:53When it got too late, Kim's mom told them to go to bed.
03:57But sometime later, the woman heard some noise coming from the room.
04:01When she went to check, she saw that one of the windows was open.
04:05All of the teens were in their beds and seemed to be sleeping.
04:08But someone must have left the room and come back.
04:11Who was it?
04:21It was the girl on the left.
04:23Look, she's wearing her shoes, indicating she went outside and then returned indoors.
04:30What can be measured, even though it has no length, width, or height?
04:43It's temperature.
04:46Take me out of a window, and I leave a grieving wife.
04:50But stick me in a door, and I can save someone's life.
04:53What am I?
05:03It's the letter N.
05:07John asked his friend Thomas how many children there were in his family.
05:12Thomas answered in a bizarre way.
05:14Two pairs of twins twice.
05:16Can you figure out what he meant?
05:27In simple words, there are eight children in Thomas' family.
05:33Look at this brain teaser closely.
05:35Can you figure out which part is missing?
05:47It's part A.
05:50Your friends come to congratulate you on your birthday.
05:53They have a great gift for you, but you can't get it so easily.
05:57First, you need to figure out the password to a combination lock.
06:01Luckily, your friends have some hints for you.
06:04Here, number one is correct and in the right place.
06:08One number is correct, but is in the wrong place in this combination.
06:12Two numbers are correct, but in the wrong place.
06:15There are no correct numbers.
06:18And in this combination, one number is correct, but in the wrong place.
06:23Can you open the combination lock and get your gift?
06:35The code you need is 394.
06:55The code you need is 394.
06:58The girl understood she had lost her chance to become the winner, but at least she could
07:02figure out who had done it to her.
07:04She had three other competitors.
07:06Wayne told her he hadn't even been there.
07:09He forgot to buy several ingredients and did some last-minute shopping.
07:13Amber said that she had been preparing the icing for her cake.
07:16And Diana told Julia that she had been very busy with the recipe.
07:21It was complicated, and she had to follow it precisely.
07:25Very soon, Julia knew who had spoiled her muffins.
07:28And have you figured it out?
07:39It was Amber.
07:40She said she had been preparing the icing, but her cake is only sprinkled with some powdered
07:45sugar.
07:48Nancy was angry with her boyfriend, Paul, and sent him an email saying she was going
07:53to break up with him.
07:54But just an hour after sending the message, the girl found out Paul had done nothing wrong.
08:00Now she needed to delete the email from his computer.
08:03The girl knew Paul was at work, so she sneaked into his house.
08:07But the computer was protected by a password.
08:10Nancy thought the word she needed could be her name.
08:13Paul loved her very much, after all.
08:15But the girl was wrong.
08:17And then an idea came to her mind.
08:19She typed in a word, and this time, it was correct.
08:23Look at what Nancy saw on the screen, and try to figure out the password.
08:36The password was 67683.
08:40These numbers correspond with the letters of Nancy's name.
08:45Dennis called the police and told them a large sum of money had disappeared from his dorm room.
08:50He thought the thief was one of his neighbors.
08:53The police arrived and questioned the guy's neighbors.
08:56Deborah, a designer, told the officers, I had to finish an important project.
09:01That's why I pulled an all-nighter.
09:03When I sent the final version to the client in the morning, I went to bed and only woke up
09:07when you came.
09:09Aaron, a waiter, said, I've had a very long shift today because one of my colleagues got ill.
09:14I haven't seen Dennis since yesterday.
09:17And Nathan, a vet, said, I've just come back home.
09:20One of my patients called and told me he felt unwell.
09:23I had to hurry to the hospital where he was and stay with him.
09:27The police officers immediately understood who was lying, and you?
09:41It was Nathan who had taken the money.
09:43He lied about a patient calling him.
09:45He's a vet.
09:48Look at these three young ladies.
09:50Can you figure out who the cat belongs to?
10:02The owner of the cat is the blonde girl.
10:05She has the animal tattooed on her ankle.
10:07See?
10:10John was hungry.
10:11He took something, threw away the outside, and cooked the inside.
10:15Then he ate the outside, and threw away the inside.
10:19What snack did he have?
10:29He had an ear of corn.
10:33Jason arrived at a hotel.
10:35He told the receptionist his name and received the key to his room and a note.
10:39There were just three letters there, F, B, and D.
10:43After some thinking, the guy understood what his room number was.
10:47Do you know it too?
10:58It's room 624.
10:59F is the sixth letter of the alphabet, B is the second, and D is the fourth.
11:07Look at this picture very closely.
11:09Can you figure out who the owner of this cute puppy is?
11:22The man on the left is holding a toy, but it's not a chew toy, it's actually his son's.
11:27The man on the right seems to have the same vibe as the pooch, but the real owner is the
11:33man in the middle.
11:34The puppy has a green bandana tied around his neck, and the man has the same bandana wrapped around his
11:40wrist.
11:46On a winter day, a man was standing in the middle of someone's front yard.
11:51The person stayed there for several weeks without moving, and the owner of the yard didn't mind.
11:57Eventually, the man left.
11:59Who was the man?
12:09It was a snowman, of course.
12:11He left a couple of weeks later when the temperature went up.
12:18Over winter break, five best friends each did different activities in different cities.
12:23Can you find out each friend's full name, what they did, and where they went?
12:29Their first names are Julie, Megan, David, Fred, and Sam.
12:33Their last names are Wallace, Thompson, Mallard, Shields, and Drake.
12:38Their preferred activities are a ski trip, moving to another place, a cruise, cooking classes, and visiting relatives.
12:48The places where they went are Houston, Paris, Cleveland, Vancouver, and Miami.
12:56And now, there's a bit more info you might need.
12:591. Julie and Miss Wallace were sad that David wasn't coming back.
13:042. Neither Sam nor Julie had ever left the U.S. before this winter break.
13:093. All the first names that have two syllables belong with the last names that have two syllables.
13:15Nobody's last name starts with the same letter as their first name.
13:194. Miss Mallard is excited to learn about French cuisine.
13:235. Mr. Thompson doesn't want to move.
13:266. The friends, in no particular order, are as follows.
13:30The girl who is going on a ski trip, Mr. Shields, Megan, the boy headed to Houston, and Julie.
13:377. Cruises can only be taken in warm coastal cities.
13:41Ski trips can only be taken in cold, mountainous places.
13:44Remember that this winter.
13:468. The cruise ship Fred is traveling on does not dock in Houston.
13:509. Also keep in mind that Sam can be a boy's or girl's name.
13:55In this case, it's short for Samantha.
13:589. Julie Mallard takes cooking classes and she went to Paris.
14:1010. Megan Wallace moved to Cleveland.
14:1211. David Thompson visited his relatives in Houston.
14:1611. Fred Shields went on a cruise in Miami.
14:1811. Sam Drake took a ski trip in Vancouver.
14:2212. It's 1962 and you're traveling to Innsbruck, Austria to see the Winter Olympics.
14:3013. When you arrive at the stadium, nobody is there.
14:3414. You ask a passerby,
14:3515. Why isn't anyone here for the Winter Olympics?
14:3815. The man answers your question.
14:4016. You both laugh at your silly mistake and you go back home.
14:4316. What did the passerby tell you?
14:4516. He told you that the Winter Olympics wouldn't start until 1964.
15:0116. There are a few airplanes on the island.
15:0517. The tank of each airplane contains just enough fuel to fly halfway around the world.
15:1017. Any amount of fuel can be transferred from one plane to another while in the air.
15:1518. The only source of fuel is on the island.
15:1818. It's assumed that all the planes burn fuel at the same rate and fly at the same speed.
15:2318. What is the smallest number of airplanes needed to ensure that one plane flies all the
15:28way around the world? 19. All the planes should return safely to the island.
15:3319. Only three planes are needed.
15:4419. Planes A, B, and C leave the island together.
15:4819. After flying one-eighth of the distance, plane C transfers one-fourth of the contents of its tank to
15:54plane A and one-fourth to plane B.
15:5720. This leaves C with one-fourth of its fuel, which is just enough to get back to the island.
16:0320. Planes A and B continue for another one-eighth of the way.
16:0820. Plane B then transfers one-fourth of the contents of its tank to plane A.
16:1220. Plane B now has half a tank of fuel left, which is enough to go back to the island.
16:1821. Plane A now has a full tank and continues to fly until it runs out of fuel, which occurs
16:25when it's one-fourth of the way to the island.
16:2721. It is met by plane C, which has already been refueled.
16:3121. Plane C transfers one-fourth of its tank to plane A, and they both head home.
16:3622. Planes A and C run out of fuel when one-eighth of the way to the island is left.
16:4122. Luckily, they're met by plane B, which has been refueled, too.
16:4622. Plane B transfers one-fourth of its tank to each of the two planes, and the three aircraft now
16:50have enough fuel to get home.
16:5522. Two 50-foot ropes are suspended from a 40-foot ceiling, 20 feet apart.
17:0023. You have only a knife. How much of the rope can you steal?
17:0623. How much of the rope can you steal?
17:0724. Almost all of it.
17:1524. First, tie the ropes together at the ends.
17:1725. Then, climb one of the ropes.
17:1925. Make a loop as close to the ceiling as possible.
17:2226. While hanging from the loop, cut the rope just below it.
17:2526. But don't drop it, otherwise you'll be stuck up there.
17:2826. Run the rope through the loop and tie it to your waist.
17:3127. Swing over to the other rope and pull the rope that's going through the loop tight.
17:3627. Cut the other rope as close to the ceiling as possible, holding tight to the end of it.
17:4128. Once the rope is loose, you will swing down below the loop.
17:4429. Let yourself down to the ground by letting the rope out.
17:4829. At the bottom, untie yourself and pull the rope completely through the loop.
17:5229. At this point, you'll have all the rope except what was used to tie the loop.
17:5830. You find yourself trapped in a medieval castle far away from Civil War.
18:0631. It's freezing outside. You can't jump out the window because it's too high above the ground.
18:1231. And even snowdrifts won't make the jump softer.
18:1531. The only tree growing near the window doesn't look sturdy enough for you to climb down.
18:2132. However, there are three doors, one of which can lead you to freedom.
18:2732. But behind the first door, there's a fierce fire.
18:3033. The second door holds back hundreds of venomous snakes.
18:3433. And behind the third door, there's a pitch dark maze and you can only imagine what surprises
18:39are waiting for you there.
18:4133. Which door should you choose?
18:4433. The third one.
18:5334. You'll just need to break off a tree branch, turn it into a torch by lighting it in the
18:57first room,
18:58and go through the maze, which wouldn't be dark anymore.
19:0134. When Mary came to work after a winter break, she realized that the office had been robbed.
19:1134. The night guard said he had been patrolling the building when he'd heard suspicious noises.
19:1635. When he got there, he saw that the office door was wide open, and so was the safe.
19:2235. The man also added that he had looked out of the window and noticed someone get in a car.
19:2736. But the sun blinded him, and he didn't manage to see who it was.
19:3036. Uh-oh.
19:4036. There's no sun at night, so it couldn't have blinded the night guard.
19:4737. He must have invented the whole story to help the criminals. Or is he the thief himself?
19:5537. Tina and Timothy loved adventures.
20:0137. Once, they decided to check out an ancient castle in Greenland that was said to belong to a witch.
20:0738. That witch used snow to perform her magic and could turn into any object and copy anyone's appearance.
20:1439. In the castle, they used torches to light their way.
20:1739. All of a sudden, their torches went out.
20:2039. Tina got terribly scared, but then the torches lit again, and she saw two husbands of hers in front
20:26of her.
20:2639. Can you tell who is her real husband?
20:3039. It's the man on the right.
20:4040. He has five fingers, like a regular human.
20:4340. The man on the left has four fingers, so it must be the witch.
20:4941. An anonymous person called the police and told them that a notorious criminal
20:55had come back to the town.
20:5741. The next day, they called the police once again to report the screams they had heard.
21:0241. They had been coming from an abandoned house.
21:0541. The police rushed there.
21:0642. They broke in and saw three tied up men.
21:1042. They figured out that one of them must have been the criminal.
21:1342. One of the officers said that he knew exactly who the criminal was.
21:1742. Can you spot them?
21:2042. Look at the man on the left.
21:3042. Can you see a phone in his pocket?
21:3242. A true criminal would never let their victim use a phone.
21:3543. Take him, officer.
21:3644.

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