Mike has some chickens that have been laying him plenty of eggs. He wants to give away his eggs to several of his friends, but he wants to give them all the same number of eggs. He figures out that he needs to give 7 of his friends eggs for them to get the same amount, otherwise there is 1 extra egg left.
What is the least number of eggs he needs for this to be true?
301 eggs.
The number of eggs must be one more than a number that is divisible by 2, 3, 4, 5, and 6 since each of these numbers leave a remainder of 1.
For this to be true one less than the number must be divisible by 5, 4, and 3 (6 is 2*3 and 2 is a factor of 4 so they will automatically be a factor). 5 * 4 * 3 = 60. Then you just must find a multiple of 60 such that 60 * n + 1 is divisible by 7. 61 / 7, 121 / 7, 181 / 7, 241 / 7 all leave remainders but 301 / 7 doesn't.
An ant gets onto one end of a tight rope that is 1 meter long. The ant is traveling at 1 centimeter per second, but the entire rope is being stretched an extra 1 meter (1,000 centimeters) a second (it can be stretched forever).
Will the ant ever reach the other end of the rope?
There are two people in front of you holding guns.
One is your best friend and the other is an impostor who looks just like him and knows all that he knows.
You also have a gun and must shoot the impostor, if you get it wrong, the impostor will shoot you. If you get it right you and your friend are safe.
What is the one question you can ask that will reveal the impostor?
There are five houses in a row. Each house is painted a different color and has a person of a different nationality living in it. Each person drinks a different beverage, smokes a different type of cigar, and owns a different animal as a pet.
Using these 15 clues, which person owns the pet fish?
The Brit lives in the red house.
The Swede has a pet dog.
The Dane drinks tea.
The green house is directly to the left of the white house.
The person in the green house drinks coffee.
The person who smokes Pall Mall has a pet bird.
The person in the yellow house smokes Dunhill cigars.
The person in the center house drinks milk.
The Norwegian lives in the first house.
The person who smokes Blends lives next to the person with the pet cat.
The person with the pet horse lives next to the one who smokes Dunhill.
The person who smokes BlueMaster drinks beer.
The German smokes Prince.
The Norwegian lives next to the blue house.
The person who smokes Blends has a neighbor who drinks water.
Well since you know you are not one of the cursed you can go down a tunnel yourself but you want a good answer from the rest so you split the groups in three leaving two left. Let those two go down one tunnel and the other six go down two separate tunnels as well. When you all meet back 20 minutes later either you have found the tunnel or someone else. Now look at the rule majority rules. If the group of three has 2 people saying it wasn't down that tunnel then you should know it wasn't down that tunnel and one of the liars have been spotted. Same with the other group of three as well as the group of two. Judging by the answers the groups gave you, you should go down the right tunnel and head to safety while the spirits possessing the two people should leave and all is well.
A woman killed her own sister. During the interrogation, she told a story that she just attended her own mother's funeral few days before the crime took place. While at the funeral, she said that she met this guy whom she did not know. She thought this guy was amazing, so much her dream guy she believed him to be just that! She fell in love with him right there, but never asked for his number and could not find him.
A few days later, she killed her sister.
Although this woman has confessed to the crime, police are still intriguing by the story, especially because she won't tell them her motive. Hearing this tragic story, with his psychological education background, Detective Anderson easily guessed the woman's motive.
Why the woman killed her own sister?
There are two planes. One is going from Los Angeles to Japan at a speed of 600 MPH. The other is traveling from Japan to Los Angeles at a speed of 500 MPH.
When the planes meet which one will be closer to Japan?
This was Gollum's final riddle from The Hobbit:
"This thing all things devours;
Bird, beasts, trees, flowers;
Gnaws iron, bites steel;
Grinds hard stones to meal;
Slay king, ruins town,
and beats a mountain down."
Old Mr. Smith was found dead in his study by young Jack. Jack recounted his dismal discovery to Detective Anderson, who happened to be around the scene.
"I was walking by Mr. Smith's house when I thought I would just pop in for a visit. I noticed his study light was on and I decided to peek in from the outside to see if he was in there. There was frost on the window, so I had to wipe it away to see inside. That is when I saw his body. So I kicked in the front door to confirm my suspicions of foul play. I called the police immediately afterward."
With a clue from Detective Anderson, the police officers immediately arrested Jack for the murder of Mr. Smith.
How could the detective tell Jack was lying?
A favorite by Teddy Roosevelt:
"I talk, but I do not speak my mind
I hear words, but I do not listen to thoughts
When I wake, all see me
When I sleep, all hear me
Many heads are on my shoulders
Many hands are at my feet
The strongest steel cannot break my visage
But the softest whisper can destroy me
The quietest whimper can be heard."
The key to this riddle is realizing that you do not have to pull the emergency switch in the first room, the entrance, and so that room will not lock down. You can leave it, and then return to it and go out the other door. And indeed this is exactly what you need to do so you can hit all 16 rooms and end in the exit room.
Once you know to leave and reenter the first room, there are eight possible solutions to travel through all the rooms and end at the exit. Because the first room is clear, you can backtrack through it to get back on the right track and pull the emergency switch in every room, saving the world from agonizing death by ancient virus.
Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation.
Conditions: Each must be used exactly once and no other numbers or symbols can be used.
Susan uses a toaster that has 2 slots. The toaster toasts one side of each piece of bread at a time, and it takes exactly 1 minute to do so.
If Susan wants to make three pieces of toast, what is the LEAST amount of time she needs to toast them on both sides?
3 minutes.
She puts two pieces in the toaster, toasting one side of each. Then she flips one of them, takes one out, and puts the completely untoasted piece into the toaster. Finally, she takes out the toasted piece and puts the two half-toasted pieces of bread into the toaster for a minute and she's done.
Ben has math lessons 4 times a week. If he has math 8:00 Monday, 9:20 on Tuesday, 10:40 on Wednesday, and 1:20 on Friday, when does Ben have math on Thursday?
One snowy night, Detective Anderson was in his house reading a book. All of a sudden a stone came crashing through his window, breaking it.
Anderson got up and looked out the window just in time to see three neighborhood brats who were brothers run around a corner. Their names were Alan Jones, Mark Jones and Peter Jones.
Not knowing of Anderson's reputation as a genius detective, the two innocent brats teased him by sent a note with clue on Anderson's front door.
The note reads "? Jones. He broke your window."
Which one of the three Jones brothers should Anderson question about the incident?
A hobo picks up cigarette butts from the ground and can make a cigarette with 4 butts. If he finds 16 cigarette butts, how many cigarettes can he make?
A car thief, who had managed to evade the authorities in the past, unknowingly took the automobile that belonged to Detective Anderson. The detective wasted no time and spared no effort in discovering and carefully examining the available clues. He was able to identify four suspects with certainty that one of them was the culprit.
The four make the statements below. From twelve of total statements, six are true and six false.
Suspect A:
1. C and I have met many times before today.
2. B is guilty.
3. The car thief did not know it was the Detective's car.
Suspect B:
1. D did not do it.
2. D's third statement is false.
3. I am innocent.
Suspect C:
1. I have never met A before today.
2. B is not guilty.
3. D knows how to drive.
Suspect D:
1. B's first statement is false.
2. I do not know how to drive.
3. A did it.
Which one is the car thief?
Let's say 6 statements are lies.
A's 1st statement and C's 1st statement negate each other. One of them is a lie.
C's and D's negate each other. One of them is lying. Therefore, there are 4 additional false statements.
Assume A is guilty. If so, A's second statement, B's second statement, and D's first statement are the additional lies.
Assume D is guilty. If so, A's second statement, B's first statement, and D's third statement are lies. This also only makes five false statements. D did not do it.
Assume C did it. If so, A's second statement, D's first and third statements are false. This again, makes only five false statements.
After ruling out suspects A, C and D, B is the culprit. B's third statement, C's second statement, and D's first and third statements are the additional false statements. This adds up to six.
This riddle is from the 5th Harry Potter movie and book, so if you've read or seen them, please skip to the next riddle!
"First think of the person
who lives in disguise,
who deal in secrets
and tells naught but lies.
Next, tell me what's always
the last thing to mend,
the middle of middle and
end of end? And finally,
give me the sound often heard
During the search for a hard-to-find word.
Now string them together, and answer me this,
Which creature would you be unwilling to kiss?"
Start both hourglasses then when the 11 minute hourglass has finished immediately flip it again. When the 13 minute hourglass runs out the 11 minute hourglass will have 9 minutes left, so flip it and it will last another 2 minutes, 13 minutes + 2 minutes = 15 minutes.
Casey buys a bracelet. She pays for the bracelet and pays $0.72 in sales tax. The sales tax rate is 6%.
What is the original price of the bracelet, before tax?
You turn the 7 minute one and the 11 minutes one at the same time. When the 7 one finishes, turn it again. When the 11 one finishes, you know that 4 minutes have passed, with 4 minutes to get to the desired 15, all you need to do now is turn the 7 minute hourglass again since it counted 4 minutes, and when it runs out it'll be exactly 15 minutes.
In a recreational activity, you are given four different jars of 2 liters, 4 liters, 6 liters and 8 liters respectively with an unlimited water supply. Then you are asked to measure exactly 5 liters of water using them.
How will you do it?
You are distributing vegetable oil. There are 21 bottles in total out of which 7 are full, 7 half empty and 7 empty. The oils has to be distributed among three people.
How will you distribute so that each person gets equal number of bottles and the same quantity of oil?
First Person: 3 full bottles, 1 half empty bottle and 3 empty bottles.
Second Person: 3 full bottles, 1 half empty bottle and 3 empty bottles.
Third Person: 1 full bottle, 5 half empty bottles and 1 empty bottle.
An old man, Dave, lives alone in a flat. Because of his age , he is not able to move comfortably and hence most of the things used to be delivered to his house.
On Friday while delivering the mail, the postman feels something suspicious in the flat and try to look inside through the key hole and he saw the bloody body of the old man.
Homicide arrived the scene. On the outside of flat, they find two bottles of warm milk, Tuesday newspaper, some unopened mails and some gifts.
Homicide waste no time and find the murderer almost immediately.
How did they do it, and who was the murderer?
Newspaper delivery man was the murderer because of absence of Wednesday and Thursday missing newspaper.
This indicates he already know that there is no one to read it.
One evening there was a murder in a house where there lived a married couple with their 2 children - their son and daughter. One of these four people murdered one of the others.
One of the members of the family witnessed the crime.
The other one helped the murderer.
These are the things we know for sure:
1. The witness and the one who helped the murderer were not of the same gender.
2. The oldest person and the witness were not of the same gender.
3. The youngest person and the victim were not of the same gender.
4. The one who helped the murderer was older than the victim.
5. The father was the oldest member of the family.
6. The murderer was not the youngest member of the family.
Who was the murderer?
The mother was the murderer.
We know from fact number three that the youngest person wasn't the victim, and from the fourth fact we know the youngest person wasn't the helper and from fact number six the youngest person was not the killer either. Therefore, the youngest person can only have been the witness. If we make up a chart there are now three possible combinations:
Oldest person (father) H H M
Next to oldest (mother) V M H
Next to youngest (son) M V V
Youngest (daughter) W W W
(H = Helper ; V = Victim ; M = Murderer ; W = Witness)
We can work out from fact number five that the father was the oldest and from fact two that the youngest person must have been the daughter. Therefore the next to the youngest must have been the son and the next to the oldest, the mother!
"Great Job You Got It"
This riddle is named after Julius Caesar, who is thought to be first to use this cipher.
Simply count the letters and arrange them in groups of the same number, here 4 will be easiest. It will be make 4 rows of 4. Then you put the rows one above the other and read up down, like so:
G T Y O
R J O T
E O U I
A B G T
Until you find the message.
8 Meters
If we look at the green bar we see that its real height is 2/3 of its shadow. So that means we need to find 2 shadows length for the red bar, the uninterruped part and the one on the wall. Since we now know the formula for the floor shadow - real height is 2/3 of it - meaning the part that makes that shadow is 4 meters long. Then we have to add the part on the wall which is straight up, it has no formula so we just add those 4 meters on the wall to the 4 meters we got from multiplying 2/3 by 6 meters and we have 4 meters + 4 meters = 8 meterss
We have two soap of equal weights and a 3/4 pound weight.
However, after using 1/4 of soap we place all three objects on balance as On one side of balance we place one soap (unused) and on another side, we placed used soap (i.e 3/4th of soap) and 3/4 pound weight.
What is the soap weight?
What is the angle between the big hand and the small hand when the time is 3:15?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).
You want Bob to have your phone number, but for some reason you can't ask him directly. You have to write Bob a note, and pass it to him through Lucy. Lucy can give you a note back with Bob's reply, but you don't want Lucy to know your phone number herself.
What will you write on the note to Bob?
This has several options for a creative mind. Our solution? Ask Bob to call you at a certain time, that way you'll know it's him and you can save the phone number.
Today is more windy than yesterday, will a return flight take the same time, less time, or the same amount of time to complete?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).
Let's do a worked example. Lets say our plane has to travel 300 miles there and 300 miles back. It has a standard cruising speed of 600mph. In the case of no wind it will travel the 600 miles in 1 hour exactly. Simple enough. Let us say that the wind speed is 100mph so the plane will be wind assisted to 700mph and slowed to 500mph - Wind Assisted: 300 miles at 700mph takes 0.429 hours - Wind Slowed: 300 miles at 500mph takes 0.6 hours - Total Time: 1.029 hours
If you pile up coins one on top of another until they get as high as the Empire State Building - would you be able to fit them all into one average sized room?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).
Yes, you could.
How do we know this? If the Empire State Building is about 100 levels tall, and each level is about an average room in height, that means we can divide the giant pile into 100 piles of one level each. Would 100 piles of coins fit in a room? Of course it will, with lots of room for more.
You put a glass of water on a record turntable and begin slowly increasing the speed. What happens first -- does the glass slide off, tip over, or does the water splash out?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).
Depends on the amount of water in it.
A glass with almost no water will not spill, while a glass almost full will spill and also fall off probably due to the weight of the water going off. In other words - there is no way to tell without knowing the amount of water in the glass.
You have a 4 minute sand clock and a 7 minute sand clock, you need to measure 9 minutes while using both of them. What's your first move?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).
You have 3 boxes. One of them contains a prize. You were allowed to pick just one of them.
You pick - and it's empty.
With 2 boxes left, you now have one box in your hand and another box in front of you. If given the chance to exchange your box with the box in front of you, would you do it? Why, and why not?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).
In the beginning, with 3 boxes, things were simple. You had a chance of 1 in 3 to find the prize. NOW we know that one of the boxes is empty but you still made a guess of 1 in 3, now you have a new choice of 1 in 2. Your probability goes up and that is why you SHOULD CHANGE THE BOX.
Don't feel bad if you disagree, this riddle has been hotly debated.
You're on a ski lift, going from the bottom of the mountain to the top. How many chairs from the other side will you pass by?
A few choices:
1. Half of them
2. 2/3 of them
3. All of them (but yours)
4. 3/4 of them
(The 'Google Riddles' are interview questions those who wish to get hired were asked).
The answer is C - all of them but yours.
The chairs are in a giant loop, with several stopping places on the way to the top, and you will see all the chairs probably more than once before you get up there.
You're sitting in a car. The car has helium balloons tied to its floor. The windows in the car are closed and locked and the Air conditioner isn't working.
What will happen to the balloons when you press on the gas?
Will they move forward, stay in place, move backwards...?
The answer is they will move forwards.
Because helium is lighter than air, it will go where air isn't. When the car is pushed forward the air moves backwards, so the helium balloons will move to where the air is not - forward.
You're a pirate captain and your crew is about to divvy up the gold you've plundered. They are waiting for your wisdom on the subject.
However, if less than half the pirate crew agree with your division of the gold, they will make you "walk the plank".
How would you divvy up the gold in a way that will keep you alive and with your pockets full of gold?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).
Share the gold with only 51% of the pirates. The other 49% will want to kill you but who cares - they're the minority! This way you'll get the max amount of gold with the majority of pirates voting to keep you alive.
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