Captured By The Riddler
In the land of Geopolizza, three men were captured by the infamous Riddler. So, the Riddler buries the three men, named 1, 2 and 3 in such a manner, that 1 is in the front, 2 in the middle and 3 in the back. They are buried neck deep, and cannot move, not even their heads. He shows them 5 caps, two of which are red and 3 of them are white. He then switches off the lights and places a hat on top of their heads. The situation is such that no one can see their hat color, 1 is facing the wall and cant say anything, 2 can see 1 and 3 can see both 1 and 2. Then he tells the rules of his game: "If either of you three can tell the correct color of your head, I will let all of you go. However, if any of you answer wrong, all 3 of you will instantly die. Time is 3 minutes."
Upon 2 and half minutes passing, A shouts the answer and all 3 are released free. How did he know the correct answer ?
Upon 2 and half minutes passing, A shouts the answer and all 3 are released free. How did he know the correct answer ?
Hint:
P3 can only be certain of his cap if 1 & 2 are both white. Since he is not certain then 1 & 2 must be either white/red or red/red. 2 knows this but the only combination that he will be able to know the colour of his own cap is if he sees that 1 is wearing a white cap. 1 knows this but as 2 remains uncertain then 1 must be wearing a red cap. Did you answer this riddle correctly?
YES NO
YES NO
Losing A New York Bet
You are hanging around in NYC when a person approaches you.
"Leaving the bald people aside, I can bet a hundred bucks that there are two people living in NYC who have same number of hairs on their heads," he says to you.
You say that you will take the bet. After talking to the man for a couple of minutes, you realize that you have lost the bet.
What did the person say to you that proved his statement ?
"Leaving the bald people aside, I can bet a hundred bucks that there are two people living in NYC who have same number of hairs on their heads," he says to you.
You say that you will take the bet. After talking to the man for a couple of minutes, you realize that you have lost the bet.
What did the person say to you that proved his statement ?
Hint:
This problem can be best solved using the pigeonhole principle.
The argument will go like this:
Assume that all the non-bald people in NYC have different number of hairs on their head. The population is about 9 million and let us assume that there are 8 million among them who are not bald.
Now, those 8 million people need to have different number of hairs. On an average, people have just 100, 000 hairs on their head. If we keep on assuming that there is someone with just one hair, someone with two, someone with three and so on, there will be 7, 900, 00 other people left who will have more than 100, 000 hairs on their head and need different number of hairs.
Now, as per this assumption, if we keep increasing one hair for each person, to make everybody hair different in numbers, we will come across someone with 8, 000, 000 hairs. But that is practically impossible (even 1, 000, 000 is impossible). Thus there must be two people who are having same number of hairs. Did you answer this riddle correctly?
YES NO
The argument will go like this:
Assume that all the non-bald people in NYC have different number of hairs on their head. The population is about 9 million and let us assume that there are 8 million among them who are not bald.
Now, those 8 million people need to have different number of hairs. On an average, people have just 100, 000 hairs on their head. If we keep on assuming that there is someone with just one hair, someone with two, someone with three and so on, there will be 7, 900, 00 other people left who will have more than 100, 000 hairs on their head and need different number of hairs.
Now, as per this assumption, if we keep increasing one hair for each person, to make everybody hair different in numbers, we will come across someone with 8, 000, 000 hairs. But that is practically impossible (even 1, 000, 000 is impossible). Thus there must be two people who are having same number of hairs. Did you answer this riddle correctly?
YES NO
Dressed In Copper Riddle
I was a gift from the French, and stand tall on an island
I welcome visitors with a strong hand in the sky
I may be green, but I'm dressed in copper from head to toe
An iconic piece of New York history, with a famous face you definitely know
Who am I?
I welcome visitors with a strong hand in the sky
I may be green, but I'm dressed in copper from head to toe
An iconic piece of New York history, with a famous face you definitely know
Who am I?
Hint:
The Speed Of A Bee
Two bikes are traveling toward each other at a constant speed of 10 mph. When the bikes are 20 miles apart, a bee flies from the front wheel of one of the bikes toward the other bike at a constant speed of 25 mph. As soon as it reaches the front wheel of the other bike, it immediately turns around and flies at 25 mph toward the first bike. It continues this pattern until the two bikes smush the bee between the two front tires.
How far did the bee travel?
How far did the bee travel?
Hint:
25 miles.
The easiest way to think about this is to consider the time. The bikes will take 1 hour to touch, given that they start 20 miles apart and are each traveling toward each other at 10 mph.
Therefore the bee is buzzing back and forth at 25 mph for 1 hour. Did you answer this riddle correctly?
YES NO
The easiest way to think about this is to consider the time. The bikes will take 1 hour to touch, given that they start 20 miles apart and are each traveling toward each other at 10 mph.
Therefore the bee is buzzing back and forth at 25 mph for 1 hour. Did you answer this riddle correctly?
YES NO
Mother From A Family Of Eight Riddle
Supports her children in spite of their weight,
Turns around without being called,
Has held you since the time you crawled.
Who is she?
Hint: She's not human
Mother Earth. The family of eight references the 8 planets. Her children being the population of the world. Earth is constantly spinning on its axis and we've all been on this planet since birth unless you're from another world. Did you answer this riddle correctly?
YES NO
YES NO
The Farmer In Australia
A farmer in Australia grows a beautiful pear tree, which he harvests to supply fruit to all the nearby grocery stores.
One of the store owners has called the farmer to see how much fruit is available that he can buy. Unfortunately the farmer isn't currently near the tree, so he has to work it out in his head.
He knows that the main trunk of the tree has 24 branches. That each branch has 12 boughs and that each bough has only got 6 twigs. Each one of these twigs bears one piece of fruit, so how many plums will he be able to sell to the store owner?
One of the store owners has called the farmer to see how much fruit is available that he can buy. Unfortunately the farmer isn't currently near the tree, so he has to work it out in his head.
He knows that the main trunk of the tree has 24 branches. That each branch has 12 boughs and that each bough has only got 6 twigs. Each one of these twigs bears one piece of fruit, so how many plums will he be able to sell to the store owner?
Hint:
None! He doesn't own a PLUM tree... he owns a PEAR trear! Did you answer this riddle correctly?
YES NO
YES NO
Turning Still Riddle
Hint:
The 2 Barbershops
There is a small town on the East Coast that has 2 barbershops each with a single barber, and on opposite sides of town. The barbershop in the good part of town is immaculate. The floors and windows are washed and the air is fresh. The barber is very friendly, always smiling, he has shined shoes, a nice head of hair, and a clean dress shirt. The barbershop in the bad part of town is a mess. The entire barbershop is covered with a layer of dirt, and the air smells of trash. The barber always has a frown on his face. His skin is oily, his hair is ragged, and there are always stains visible on his shirt.
A man comes into town and hears of both barbershops and the man decides to go to the dirty barbershop in the bad part of town. Why does he do this?
A man comes into town and hears of both barbershops and the man decides to go to the dirty barbershop in the bad part of town. Why does he do this?
Hint:
The clean-cut barber must have his hair cut by the dirty barber and the dirty barber by the clean-cut barber. So its obvious that the dirty barber gives a better haircut. Did you answer this riddle correctly?
YES NO
YES NO
Wrong Way Riddle
A truck driver is going opposite traffic on a one-way street. A police officer sees him but doesn't stop him. Why didn't the police officer stop him?
Hint:
Zebras And Ostriches In The Zoo
You count 80 heads and 200 legs.
Can you find the number of Zebras and the number of Ostriches in the Zoo?
Hint:
The number of Ostriches = 60 & The number of Zebras = 20 Did you answer this riddle correctly?
YES NO
YES NO
A Game Of Dodge Ball Riddle
If the order of throwing is you, John, then Tom; what should you do to have the best chance of winning?
Hint:
Miss the first time on purpose.
If you try to hit John and do. Then Tom goes next and he will hit you and you will lose for sure. If you aim at Tom and hit him then John will go for you. If you miss on your first turn John will go for Tom for sure because he is a stronger player. If he hits him then it's just you and John, but you are going first. If he misses him then Tom will hit John and it will be just you and Tom, but again in this case you are going first. Did you answer this riddle correctly?
YES NO
If you try to hit John and do. Then Tom goes next and he will hit you and you will lose for sure. If you aim at Tom and hit him then John will go for you. If you miss on your first turn John will go for Tom for sure because he is a stronger player. If he hits him then it's just you and John, but you are going first. If he misses him then Tom will hit John and it will be just you and Tom, but again in this case you are going first. Did you answer this riddle correctly?
YES NO
The Homicide Team Riddle
A homicide team enters a crime scene where a dead body of a fat old man lies there on the floor with blood oozing out of his head. The victim is holding a gun and a tape recorder lies there by his side. One of the detective picks up the recorder and plays it "I am tired of this life and hence I have decided to relieve myself from the worldly pains". A gunshot follows the message.
The teams starts investigating a murder investigation.
Why?
The teams starts investigating a murder investigation.
Why?
Hint:
If the man killed himself, he would not have been able to rewind the cassette. Thus it is clear someone else killed him. Did you answer this riddle correctly?
YES NO
YES NO
Seven Deaths Riddle
A man goes to bed at 9:45 pm. He makes himself a drink, then turns off the TV and the lights. The night was windy and there was a major storm. The next day he discovers he was the cause of seven deaths. How is this possible?
Hint:
He lived in a lighthouse as lighthouse keeper. He turned off all the lights by accident, so a ship with 7 passengers couldnt negotiate the rocky shores. One would think the light switches in a lighthouse would be more clearly marked. Did you answer this riddle correctly?
YES NO
YES NO
Out The Abandoned Building Riddle
A homicide detective is called at a crime scene. A man is lying dead in front of an abandoned building. It is believed that the man jumped out of a window off the abandoned building and committed suicide.
The detective asks his team to collect evidence and he heads towards the building. He goes to the first floor and towards the room that is on the front side. Inside the room, he lights a cigarette, walks towards the window facing the dead body, opens the window and throws out the cigarette. He then goes to the second floor and repeats the same process.
He keeps doing the same thing till he is done with all the floors and then takes the lift to the ground floor. Upon reaching there, he informs the team that it is not a suicide but a murder.
How did he know that it was a not a suicide?
The detective asks his team to collect evidence and he heads towards the building. He goes to the first floor and towards the room that is on the front side. Inside the room, he lights a cigarette, walks towards the window facing the dead body, opens the window and throws out the cigarette. He then goes to the second floor and repeats the same process.
He keeps doing the same thing till he is done with all the floors and then takes the lift to the ground floor. Upon reaching there, he informs the team that it is not a suicide but a murder.
How did he know that it was a not a suicide?
Hint:
If the man had committed suicide, the window that he jumped from should have been left opened. But all the windows facing the dead body were closed. This means that someone closed the window after the man died. Did you answer this riddle correctly?
YES NO
YES NO
The Policeman And The Boy
A police officer got out of his patrol car and saw a boy. He walked up to him asked him, "What's your name?"
"Shut up!" the boy replied innocently.
"Where's your manners?" asked the insulted police officer.
"Up that tree," said the boy nonchalantly, pointing to a proximate tree.
"You're seeking for trouble, aren't you?" said the police officer.
"No, trouble's seeking for me!" the boy replied sincerely.
What is happening here?
"Shut up!" the boy replied innocently.
"Where's your manners?" asked the insulted police officer.
"Up that tree," said the boy nonchalantly, pointing to a proximate tree.
"You're seeking for trouble, aren't you?" said the police officer.
"No, trouble's seeking for me!" the boy replied sincerely.
What is happening here?
Hint:
Actutally, the name of that boy is "Shut Up," and he is playing hide-and-seek with two of his friends who are named "Manners" and "Trouble". "Trouble" is the one who counted and he is looking for the other two boys. "Manners" is hiding up in the tree. Did you answer this riddle correctly?
YES NO
YES NO
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