How Old Could He Be?
In 1940, a correspondent proposed the following question:
A man's age at death was one twenty-ninth of the year of his birth. How old was he in 1900?
A man's age at death was one twenty-ninth of the year of his birth. How old was he in 1900?
Hint:
He was 44 years old.
From the question you know the man died between 1900 and 1940. We also know his age at death (x) is one twenty-ninth of the year of his birth (29x). If you add his age at death to the year he was born you get the year he died (30x). Only one year between 1900 and 1940 is divisible by 30, 1920 (the year he died). The year he was born can now be found: 1920 * (29/30) = 1856. So in 1900 he was (1900 - 1856) = 44 years old. Did you answer this riddle correctly?
YES NO
From the question you know the man died between 1900 and 1940. We also know his age at death (x) is one twenty-ninth of the year of his birth (29x). If you add his age at death to the year he was born you get the year he died (30x). Only one year between 1900 and 1940 is divisible by 30, 1920 (the year he died). The year he was born can now be found: 1920 * (29/30) = 1856. So in 1900 he was (1900 - 1856) = 44 years old. Did you answer this riddle correctly?
YES NO
Old Man Ankit
An old man ankit 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 , postman feels something suspicious in the flat and try to look inside through the key hole and he saw a blood filled body of the old man.
CID arrived the scene.
On the outside of flat , he found two bottles of warm milk , Tuesday newspaper, some unopened mails , some gifts.
CID waste no time to find the murderer.
Who was the murderer ?
On Friday while delivering the mail , postman feels something suspicious in the flat and try to look inside through the key hole and he saw a blood filled body of the old man.
CID arrived the scene.
On the outside of flat , he found two bottles of warm milk , Tuesday newspaper, some unopened mails , some gifts.
CID waste no time to find the murderer.
Who was the murderer ?
Hint:
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. Did you answer this riddle correctly?
YES NO
This indicates he already know that there is no one to read it. Did you answer this riddle correctly?
YES NO
The Death Lift Riddle
A lift is on the ground floor. There are 4 people in the lift including me.
When the lift reaches 1st floor, 1 person gets out 3 people get in.
The lift goes up to the second floor, 2 people get out 6 people get in.
It then goes up to the next floor up, no-one gets out but 12 people get in. Halfway up to the next floor up the lift cable snaps, it crashes to the floor. Everyone dies in the lift. How did I survive?
When the lift reaches 1st floor, 1 person gets out 3 people get in.
The lift goes up to the second floor, 2 people get out 6 people get in.
It then goes up to the next floor up, no-one gets out but 12 people get in. Halfway up to the next floor up the lift cable snaps, it crashes to the floor. Everyone dies in the lift. How did I survive?
Hint:
Born In B.C. Riddle
Hint:
45 years old.
There is no year 0 so you can add 23 to 23 but you must subtract one to take year 0 out of consideration: 23 + 23 - 1 = 45 years old. In some cultures people are born 1 years old, in this case they would be 46 years old when they die. Did you answer this riddle correctly?
YES NO
There is no year 0 so you can add 23 to 23 but you must subtract one to take year 0 out of consideration: 23 + 23 - 1 = 45 years old. In some cultures people are born 1 years old, in this case they would be 46 years old when they die. Did you answer this riddle correctly?
YES NO
More Than 80 Riddle
Hint:
Christmas And New Year's Riddle
Christmas and New Year's Day occur exactly one week apart. So a New Year's that occurs right after Christmas should be on the same day of the week. But in the year 2020 Christmas will occur on a Friday and New Year's on a Wednesday.
Why is this?
Why is this?
Hint:
In 2020 New Year's occurs on January 1st, 2020 and Christmas on December 25th, 2020. These dates are 51 weeks and 2 days apart, not one week apart (during the year New Year's occurs before Christmas). Did you answer this riddle correctly?
YES NO
YES NO
Used In Chemistry Riddle
I contain more than 100 things but Im not pieces in a jigsaw puzzle
I contain metals but Im not a car
I contain hydrogen and oxygen but Im not water
I sound like I could be a piece of furniture but Im not a flower bed
Im used in chemistry but Im not a test tube
I contain metals but Im not a car
I contain hydrogen and oxygen but Im not water
I sound like I could be a piece of furniture but Im not a flower bed
Im used in chemistry but Im not a test tube
Hint:
A Train Of Two Cities
A train leaves from New York City (NYC) heading towards Los Angeles (LA) at 100 mph. Three hours later, a train leaves LA heading towards NYC at 200 MPH. Assume there's exactly 2000 miles between LA and NYC. When they meet, which train is closer to New York City?
Hint:
Who Killed The Old Man Riddle
An old man lives alone in a house. 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 house and tries to look inside through the key hole and he saw the blood filled body of the old man.
The police arrived the scene.
Outside the house, he found two bottles of warm milk, Tuesday newspaper, some unopened mail, and some gifts.
The police wasted no time to find the murderer.
Who killed the old man?
On Friday while delivering the mail, the postman feels something suspicious in the house and tries to look inside through the key hole and he saw the blood filled body of the old man.
The police arrived the scene.
Outside the house, he found two bottles of warm milk, Tuesday newspaper, some unopened mail, and some gifts.
The police wasted no time to find the murderer.
Who killed the old man?
Hint:
The newspaper delivery man, because there was no Wednesday, Thursday or Friday newspaper. He knew there was no one home to read it! Did you answer this riddle correctly?
YES NO
YES NO
Who Stole The Money Riddle
A man placed a $100 dollar bill on his desk and left for work. When he returned back the money was gone. He has three suspects: the cook, the maid and the electrician.
The cook said he put the bill under a book on his desk to keep it safe. The man checked and it is no longer there.
The maid said she moved the bill to the inside of the book between page 1 and 2 while she was cleaning. Again, the man checked the book and there was nothing between page 1 and 2.
The electrician said he saw the bill sticking out of the book and he moved it between page 2 and 3 to keep it safe.
Who stole the money?
The cook said he put the bill under a book on his desk to keep it safe. The man checked and it is no longer there.
The maid said she moved the bill to the inside of the book between page 1 and 2 while she was cleaning. Again, the man checked the book and there was nothing between page 1 and 2.
The electrician said he saw the bill sticking out of the book and he moved it between page 2 and 3 to keep it safe.
Who stole the money?
Hint:
The electrician stole the money.
If the man checked for the money between page 1 and 2 of the book, then page 2 and 3 will be opposite sides of a single page and will not be able to hold the money.
Did you answer this riddle correctly?
YES NO
If the man checked for the money between page 1 and 2 of the book, then page 2 and 3 will be opposite sides of a single page and will not be able to hold the money.
Did you answer this riddle correctly?
YES NO
Who Killed Samuel?
My name is Andy, and I will tell you a murderous tale.
On Friday, a murder took place at 4:21 a.m. The morning was calm with light rain. The body of Samuel was found in the dining room, however the murder happened in the kitchen. When the police arrived they could not find out the cause of death.
An autopsy was performed and ruled a natural death. Samuel was however poisoned by arsenic, an undetectable poison. His wife, 5'3" who leaves every night for work until 6 a.m, says she is sure that it was a suicide or suspects the butler. The butler happens to leave at 4 a.m everyday and returns at 6 p.m. The butler suspects the wife because she found pictures of her husband and another woman in her car. Who murdered the husband?
On Friday, a murder took place at 4:21 a.m. The morning was calm with light rain. The body of Samuel was found in the dining room, however the murder happened in the kitchen. When the police arrived they could not find out the cause of death.
An autopsy was performed and ruled a natural death. Samuel was however poisoned by arsenic, an undetectable poison. His wife, 5'3" who leaves every night for work until 6 a.m, says she is sure that it was a suicide or suspects the butler. The butler happens to leave at 4 a.m everyday and returns at 6 p.m. The butler suspects the wife because she found pictures of her husband and another woman in her car. Who murdered the husband?
Hint: There are three suspects.
The narrator, Andy. Both the wife and the butler suspect each other and have an alibi. Only Andy knows the name of the undetectable poison that killed Samuel. Did you answer this riddle correctly?
YES NO
YES NO
Worst Day Of The Week
I am quite possibly the worst day of the week, I'm not Friday. The day after me isn't Friday, the day after the day after me isn't Friday either. What day am I?
Hint: Not Friday
Flip The Switch Riddle
There is a prison with 100 prisoners, each in separate cells with no form of contact. There is an area in the prison with a single light bulb in it. Each day, the warden picks one of the prisoners at random, even if they have been picked before, and takes them out to the lobby. The prisoner will have the choice to flip the switch if they want. The light bulb starts off.
When a prisoner is taken into the area with the light bulb, he can also say "Every prisoner has been brought to the light bulb." If this is true all prisoners will go free. However, if a prisoner chooses to say this and it's wrong, all the prisoners will be executed. So a prisoner should only say this if he knows it is true for sure.
Before the first day of this process begins, all the prisoners are allowed to get together to discuss a strategy to eventually save themselves.
What strategy could they use to ensure they will go free?
When a prisoner is taken into the area with the light bulb, he can also say "Every prisoner has been brought to the light bulb." If this is true all prisoners will go free. However, if a prisoner chooses to say this and it's wrong, all the prisoners will be executed. So a prisoner should only say this if he knows it is true for sure.
Before the first day of this process begins, all the prisoners are allowed to get together to discuss a strategy to eventually save themselves.
What strategy could they use to ensure they will go free?
Hint:
Only allow one prisoner to turn the light bulb off and all of the others turn it on if they have never turned it on before. If they have turned it on before they do nothing. The prisoner that can turn it off then knows they have all been there and saves them all when he has turned it off 99 times. Did you answer this riddle correctly?
YES NO
YES NO
Five Eyes Riddle
Hint:
The Longest Camping Trip Riddle
A group of campers have been on vacation so long, that they've forgotten the day of the week. The following conversation ensues.
Darryl: What's the day? I dont think it is Thursday, Friday or Saturday.
Tracy: Well that doesn't narrow it down much. Yesterday was Sunday.
Melissa: Yesterday wasn't Sunday, tomorrow is Sunday.
Ben: The day after tomorrow is Saturday.
Adrienne: The day before yesterday was Thursday.
Susie: Tomorrow is Saturday.
David: I know that the day after tomorrow is not Friday.
If only one person's statement is true, what day of the week is it?
Darryl: What's the day? I dont think it is Thursday, Friday or Saturday.
Tracy: Well that doesn't narrow it down much. Yesterday was Sunday.
Melissa: Yesterday wasn't Sunday, tomorrow is Sunday.
Ben: The day after tomorrow is Saturday.
Adrienne: The day before yesterday was Thursday.
Susie: Tomorrow is Saturday.
David: I know that the day after tomorrow is not Friday.
If only one person's statement is true, what day of the week is it?
Hint:
It is Wednesday. If it was any other day of the week, more than one statement would be true. To solve the riddle, evaluate each person's statement and write down what day it could be according to the statement. David's statement indicates it could be any day of the week except for Wednesday. When you list the days that it could be according to everyone's statement, it turns out Wednesday is the day mentioned only one time. Darryl: Sunday, Monday, Tuesday, or Wednesday Tracy: Monday Melissa: Saturday Ben: Thursday Adrienne: Saturday Susie: Friday David: Sunday, Monday, Tuesday, Thursday, Friday or Saturday Did you answer this riddle correctly?
YES NO
YES NO
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