The Gardners Riddle
Gretchen and Henry were discussing their new neighbors, the Gardners. Gretchen mentioned that she met two of the daughters, and they each had blond hair.
"I have met all of the sisters," replied Henry, "and the probability that both of the girls you met would have had blond hair, assuming you were equally likely to meet any of the sisters, is exactly 50%. Do you know how many children there are?"
After thinking for a minute, Gretchen asks if the family is abnormally large. When Henry replies that it is not, Gretchen tells him how many girls are in the family. What number did she say?
"I have met all of the sisters," replied Henry, "and the probability that both of the girls you met would have had blond hair, assuming you were equally likely to meet any of the sisters, is exactly 50%. Do you know how many children there are?"
After thinking for a minute, Gretchen asks if the family is abnormally large. When Henry replies that it is not, Gretchen tells him how many girls are in the family. What number did she say?
Hint:
Gretchen said that there were 4 girls in the family, three of whom were blond.
This would make the probability that she saw two blonds (3/4) * (2/3), which equals 1/2.
Other numbers would work, but the next pair would lead to a rather large family. Did you answer this riddle correctly?
YES NO
This would make the probability that she saw two blonds (3/4) * (2/3), which equals 1/2.
Other numbers would work, but the next pair would lead to a rather large family. Did you answer this riddle correctly?
YES NO
Exposed To A Disease Riddle
A boy and his father have been exposed to a disease. Sadly, the father rapidly develops a tumor and dies. The boy survives, but desperately needs an operation and is rushed to hospital. A surgeon is called. Upon entering the room and seeing the patient, the surgeon exclaims, Oh no! I cant do the operation. Thats my son!
Hint:
Born In London Riddle
Simon Simpleton was born in London, England.
His mother was Welsh and his father Scottish.
When Simon was eight his mother died.
When Simon was ten his father married an Irish women and suddenly Simon had an Irish sister.
When Simon was twenty four he graduated as a lawyer and took a job in Edinburgh, Scotland.
He is now sixty six.
Why can he not be buried on the banks of Loch Lomond in his favorite village of Luss, in Bonnie Scotland?
His mother was Welsh and his father Scottish.
When Simon was eight his mother died.
When Simon was ten his father married an Irish women and suddenly Simon had an Irish sister.
When Simon was twenty four he graduated as a lawyer and took a job in Edinburgh, Scotland.
He is now sixty six.
Why can he not be buried on the banks of Loch Lomond in his favorite village of Luss, in Bonnie Scotland?
Hint:
Three Burgers Riddle
Two mother's and two daughters went out to eat. They each had one burger, yet only three burgers were eaten. How is this possible?
Hint:
17 Cows Riddle
An old farmer died and left 17 cows to his three sons. In his will, the farmer stated that his oldest son should get 1/2, his middle son should get 1/3, and his youngest son should get 1/9 of all the cows. The sons, who did not want to end up with half cows, sat for days trying to figure out how many cows each of them should get.
One day, their neighbor came by to see how they were doing after their father's death. The three sons told him their problem. After thinking for a while, the neighbor said: "I'll be right back!" He went away, and when he came back, the three sons could divide the cows according to their father's will, and in such a way that each of them got a whole number of cows.
What was the neighbor's solution?
One day, their neighbor came by to see how they were doing after their father's death. The three sons told him their problem. After thinking for a while, the neighbor said: "I'll be right back!" He went away, and when he came back, the three sons could divide the cows according to their father's will, and in such a way that each of them got a whole number of cows.
What was the neighbor's solution?
Hint:
The neighbour borrowed an extra cow, to make the total number of cows 18. Then the oldest son got 1/2 of 18 is 9 cows, the middle son got 1/3 of 18 is 6 cows, and the youngest son got 1/9 of 18 is 2 cows. Since 9+6+2 = 17, the cows could be divided among the three brothers in such a way that the borrowed cow was left over, and could be returned to its owner. Did you answer this riddle correctly?
YES NO
YES NO
If Lupitas Daughter Riddle
Lupita's dad has 5 daughters, Lisa, Laura, Liza and Lolo. What is the name of the other daughter missing?
Hint:
The answer to 'If Lupita's dad's daughter' riddle is Lupita herself. The key to this simple riddle is the very first line of the riddle. In the first line of this riddle, it is stated that "Lupita's dad has 5 daughters".
In the subsequent list, "Lisa, Laura, Liza and Lolo," Lupita's name is missing. When the final part of the riddle asks who the fifth daughter is, some people get confused and think that the answer is in the last part itself.
However, if one pays attention, then they will immediately realize that the list is about Lupita's dad's daughters. Hence Lupita herself is the name missed out from the list. Its all just wordplay, but anyone can be tricked if they do not pay attention to the nuances of the riddle. Did you answer this riddle correctly?
YES NO
In the subsequent list, "Lisa, Laura, Liza and Lolo," Lupita's name is missing. When the final part of the riddle asks who the fifth daughter is, some people get confused and think that the answer is in the last part itself.
However, if one pays attention, then they will immediately realize that the list is about Lupita's dad's daughters. Hence Lupita herself is the name missed out from the list. Its all just wordplay, but anyone can be tricked if they do not pay attention to the nuances of the riddle. Did you answer this riddle correctly?
YES NO
At A Four Legged Table Riddle
At a four-legged table, there is one grandma, two mothers, two daughters and a granddaughter. How many legs are under the table?
Hint:
There are 10 legs under the table in total. We have a grandmother (a mother), her daughter (both a mother and a daughter) and her granddaughter (a daughter and granddaughter) hence how we have the number of mothers and daughters sat around the table. Did you answer this riddle correctly?
YES NO
YES NO
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