- 2 months ago
Solving riddles isn't just a brain workout; it's a mental adventure that hones our problem-solving skills. It's like a daily dose of brain calisthenics, keeping our cognitive gears well-oiled and ready for action!
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00:02map buys a new house in the basement he discovers three signed boxes and a note it says that one
00:10of the boxes contains 1 million dollars the two other boxes are empty according to the note only
00:18one of the three messages written on the boxes is true on the first box it said that the cash
00:25is
00:25not there the second box has a similar message the cash is not here and the third box says that
00:33the cash is in the second box if you were Matt which bag would you choose Matt should choose the
00:50first bag as we know only one of the clues is true so the money should be in the first
00:55bag
00:58Matt walks out of his house and goes to the garden he pulls out his right hand
01:04suddenly a bee lands on it what's in Matt's eye
01:17beauty why because beauty is in the eye of the bee holder
01:23in the garden Matt takes two pictures can you spot three differences between them
01:37here they are
01:41Matt returns home and figures out that someone has broken into his house
01:45and the thief has just left how did Matt figure this out
01:58someone turned on his electric stove and put a plastic bag on top the plastic is only half
02:03melted so the thief must have left a few seconds ago
02:08Matt goes to his favorite vegan restaurant as usual on Fridays he orders a slice of pizza puts it on
02:15a
02:15table and leaves for a couple of minutes to wash his hands then Matt comes back and finds out that
02:20his pizza is gone he interrogates three customers nearby Harold says I'm not hungry so I didn't even look at
02:28your food I came here for the sake of coffee Bella says I was having a video call with my
02:34boyfriend he lives in another country so we go on virtual dates every Sunday distance is so exhausting
02:41and Anna says I was taking pictures of my food so I didn't look around you can check them out
02:46if
02:46you don't believe me after hearing about what they had to say Matt knows for sure who's a liar
02:52what about you
03:02according to Bella she goes on virtual dates every Sunday but it's Friday liar
03:09Matt's girlfriend Erica is visiting him in his lab suddenly she faces two identical mats can you help her
03:16figure out who's a clone
03:27the guy on the right has a scar on his arm meanwhile the clone doesn't have any because his skin
03:32is brand new
03:36Matt goes to the mall and buys a bat and a ball for one dollar and ten cents in total
03:42the bat costs one
03:43dollar more than the ball how much does the ball cost
03:56nope the correct answer is not ten cents it's actually a little less a ball costs five cents and
04:02the bat one dollar and five cents and together they total one dollar and ten cents
04:09someone robbed Matt's lab the thief stole the cloning device and he's going to hand it over tonight
04:15this is a great opportunity to catch the criminal the police figure out the approximate place where to
04:20look for the device they decide to question several people nearby Greg says the garbage truck has just
04:27emptied the overhead trash cans Jeff says I'm in charge of these trash cans I checked all the cans next
04:34to the
04:34yellow ones and found nothing interesting and Bill just points at all the trash cans that someone
04:39approached today can you help the police find the trash can with the stolen device
04:53first of all we need to calculate the top cans and now let's check all the remaining trash cans which
04:59people were approaching the next step is to remove those next to the yellow ones and here it is
05:04the trash can we've been looking for after the robbery Matt decides to lock his lab door with a
05:12password there are four buttons with different images orange banana apple and tomato can you guess which
05:18button opens the door the odd one out is the tomato because all the others are fruits so it should
05:34open the
05:38door a priceless crystal disappeared from the local science museum the thief left no trace behind after
05:44analyzing the museum security cameras Matt invites three suspects for an interrogation the security guard
05:51says I only left my post once during lunchtime I can swear that the crystal was still there when I
05:56came
05:56back the museum curator says I spent the day guiding a tour of foreign scientists they came to see the
06:04crystal at the beginning of the tour it was still shining bright in its place one of the visitors says
06:10I only
06:11popped in for a quick visit I didn't even pass through the room where the crystal was kept after hearing
06:16their stories Matt knows for sure who the thief is what about you
06:29it was the visitor he hid the crystal in his sleeve
06:34Matt's brother Greg arrives at his house to eat together he yells Matt the microwave is on and it's already
06:41defrosting our dinner
06:42Greg here's Matt's reply from the bathroom could you please check the microwave and let me know how much time
06:48is left
06:49Greg grabs his phone and calls the police he reports a dangerous situation involving his brother how did he know
07:04Greg is blind so his brother would have asked him to look at the microwave because Matt knows that Greg
07:10can't see
07:11this made Greg suspicious and that's why he called the police
07:18the next day Matt wakes up in a secret abandoned lab he wanders around and finds three doors leading to
07:24freedom
07:25but each door is hiding an unpleasant surprise here's a creepy monster sitting in a cage behind the first door
07:31it's very hungry and angry there's a bunch of venomous snakes crawling behind the second door and the lights are
07:38off
07:39so Matt won't be able to see them and behind the door there's a huge fire
07:42which way is more or less safe
07:54he should choose the first door the monster is in a cage so Matt can just pass by and escape
08:02Matt manages to escape and enters the nearest gas station he spots three odd things about this place
08:08right away can you see them too
08:19the poster with the engine oil advertisement offers a zero percent discount the cashier has an octopus tentacle
08:26instead of hands see this package of chips it says they have the flavor of spiders that's weird
08:35the cashier agrees to help Matt get home if he manages to solve his riddle
08:40i came first on earth but second in heaven i also come twice a week but i'm found just once
08:46a year
08:47i stay away for months but you can find me in february what am i
09:01the correct answer is the letter e
09:05Matt returns home and finds out that someone has left homemade cookies on the kitchen table
09:10he examines all the doors and windows he finds no signs of a break-in
09:14Matt decides to question three suspects who have a key
09:17his mother says
09:19i spent all day with my yoga teacher and my class ended 10 minutes ago so i didn't have time
09:24for cookies
09:25the plumber says
09:27i fixed the kitchen sink in the morning and left for home
09:30why would i bring you any gifts
09:32and matt's girlfriend erica says
09:35i visited your house a couple of hours ago to drop off some shopping bags and left for the gym
09:39i didn't see any cookies who's lying
09:52the plumber take a closer look at the kitchen sink it has no tap therefore he lied
10:00Matt is walking in the local restaurant and gets lost in a maze he has only 15 seconds to get
10:06out
10:06before it starts raining can you help him find the right direction
10:19ready to see the answer here's the correct route
10:33mensa is a society for people with high iqs let's solve some challenging puzzles and test your iq
10:40we are at a birthday party and playing a fun game called musical seating
10:43guess whose birthday it is six cozy sofas numbered from one through six and we have six guests
10:52the seats are placed in a circle hit it dj people start to circle around the sofas when the music
10:59stops
10:59everyone quickly sits down on the sofa they make sure each sofa has just one guest
11:04no squeezing next to a friend as they settle in everyone faces the center and the lucky person
11:11celebrating their birthday now here's how the circle of seating looks one meet mike who's not the
11:19birthday celebrant he's seated right next to susie but don't expect susie to be gazing at the birthday
11:25person she's not seated directly across from them two julia on the other hand makes sure she's not
11:32cozying up next to yuri three nat is a pro gamer and gets seated first
11:40four victor is two seats to the right of julia
11:45five yuri meanwhile make sure he's at least a couple of seats away from the birthday person
11:51the million dollar question is whose special day are we celebrating today
12:03it's julia's birthday so from our clues we know that mike sits next to susie
12:10victor is two seats to the right of julia and yuri isn't too close to the birthday person
12:16so looking at the circle clockwise we have mike susie victor another sofa julia and another sofa
12:23now considering the second clue our arrangement is narrowed down to mike susie yuri victor nat and
12:30julia finally using clue five to spot the birthday person we're left with julia mike or nat but rule
12:37number one eliminates mike and nat leaving us with julia sitting on sofa one mike occupying sofa number
12:42two susie sitting on sofa number three yuri on the fourth sofa victor on sofa number five and nat
12:48occupying sofa number six so happy birthday julia let's move on a police chase puzzle only true
12:58detectives can solve this one we're in a sprawling city whose streets form an infinite grid crisscrossing
13:04in every direction what's important for us is the main street it boasts police officers stationed at every
13:12hundred blocks a thief is now lurking in the city's shadows and our mission is to guarantee they'll
13:18run right into the arms of the law forces there's an important thing to consider the thief has nimble
13:25feet and can dash faster than any officer but the officers can see infinitely far think of these as their
13:30superpowers oh and both the police and the thief are in the street at all times think about your strategy
13:46we will start by dispatching officers to patrol the streets running perpendicular to the main street this
13:53strategic move will allow them to keep an eye on all the streets that run parallel to the main street
13:59with this two-pronged approach we've got every corner of the city covered and there's nowhere for
14:04our wily robber to hide now let's establish some basic terminology we'll call the streets that run
14:09parallel to the main street as avenues and the ones that run perpendicular as streets we'll number the
14:16streets from negative infinity to positive infinity creating a neatly organized cityscape our operation
14:23starts with officers stationed on the main street at street zero positive 100 negative 100 positive
14:28200 negative 200 and so forth to crack this case we're rolling out a two-part plan step one as
14:37soon
14:37as the chase begins the officers stationed on the odd hundreds will set off towards street zero meanwhile
14:43the officers on the even hundreds will hold their ground this maneuver ensures that our slippery suspect
14:49is confined to a city district that's only 200 blocks wide anytime they cross a street that's a
14:55multiple of 200 they'll be squarely in the view of an officer stationed at the intersection of that
15:00street in the main street step two starts when the officers from the odd hundreds cease their promenade
15:06along the main street once they reach street plus slash one street plus slash two plus slash three
15:12so forth at this point they'll take a right turn and continue their vigilant patrol the officers from
15:20the positive numbered streets will march in one direction while their counterparts from the negative
15:24numbered streets will proceed in the opposite direction as each officer traverses their respective
15:30street they'll cast their watchful gaze down every avenue they come across with an infinite number
15:36of officers at our disposal we can be certain that eventually officers will patrol every street from
15:42street plus slash one plus slash two plus slash three and so on up to some finite value let's call
15:48it n
15:49in simpler terms we're going to make sure that all the streets within the 200 block vicinity of our
15:55lawbreaker will have officers patrolling them if our thief wants to remain at large their only option
16:01is to hide on one of the avenues but sooner or later as our officers venture away from the main
16:06street
16:06scrutinizing every avenue they pass the cat and mouse game will be over mission accomplished three
16:14switches are in charge of lighting up three bulbs in a special way each switch operates just one bulb and
16:20each bulb is under the spell of just one switch however there's a twist as only one of the following
16:25claims is true switch hash one declares i'm the controller of bulb b switch hash two states i'm the boss
16:31of
16:32either bulb a or c and switch hash three claims i've got my grip on either bulb a or b
16:37so can you figure out the perfect match between the switches and the bulbs
16:48if you said switch hash one goes with c switch hash two gets on with b and switch hash three
16:53pairs up with a
16:54then you solve the puzzle the key is that only the last statement is true if the first statement
17:01was true then the other two would have to be false this would create a problem because switch hash one
17:07would have to control both b and c if the second statement told us the truth switch hash two would
17:13control a or c leaving bulb b in the dark this isn't allowed lastly if the third statement was true
17:21then switch
17:21hash three would control a or b making switch hash one control a or c and switch hash two control
17:28b
17:29this arrangement works voila the first two statements are not true the next puzzle is a morning dilemma
17:36this one is from the department of physics of oxford university so you're running late for work but
17:42also craving a caffeine kick you pour yourself a steaming cup of black coffee but it's hot to handle
17:48how can your cuppa cool down more effectively you have two options you can go all in adding milk
17:54right away and then patiently twiddle your thumbs for a few minutes before taking a sip or you can play
17:59it cool letting your coffee sit for a few minutes and then swoop in with the milk just before that
18:04first sip
18:12the winning ticket is the second option here's why your coffee starts off hotter than an option one
18:18when you introduce the milk the thing is hotter things have a knack for cooling down faster thanks
18:25to a bigger temperature gap with their surroundings so in option two your coffee is racing against time
18:31cooling down at a quicker pace interestingly both options result in the same amount of time needed
18:38to cool the drink down but at different rates since nearly all these puzzles are from mensa let's
18:45define this global brainy community it boasts over 150 000 members from all walks of life spanning
18:52more than 90 countries around the globe but what exactly do they do imagine a bustling place where members
19:00dive into the intellectual deep end through captivating lectures enlightening journals and special interest groups
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