In 1990 A Person Is 15 Years Old Riddle
Hint:
The years are in B.C (Before Christ).
Thus, 1990 in BC will gives 15 years old and 1995 in BC will gives 10 years old. Did you answer this riddle correctly?
YES NO
Thus, 1990 in BC will gives 15 years old and 1995 in BC will gives 10 years old. Did you answer this riddle correctly?
YES NO
Presidents Of The United States Riddle
The 22nd and 24th presidents of the United States of America had the same parents, but were not brothers. How can this be possible?
Hint:
They were the same man. Grover Cleveland served two terms as president of the United States, but the terms were not consecutive. Did you answer this riddle correctly?
YES NO
YES NO
Dogs In The Snow Riddle
Hint:
Two Presidents Riddle
The 22nd and 24th Presidents had the same biological mother and father, but weren't brothers. They were both male, and were never female. Neither were adopted or "switched at birth". How is this possible?
Hint:
They were the same person. The 22nd President was Grover Cleveland. After his first term, Benjamin Harrison was voted into office. Once Harrison was voted out of office, Cleveland was voted back in, becoming the 23rd President. Did you answer this riddle correctly?
YES NO
YES NO
The President's Name Riddle
Hint:
Presidential Promises Riddle
Ronald has a rare opportunity to meet the President of the United States. During his visit the president gives him a gift but tells Ronald he is never to sell it unless he sees the president again. Ronald consents, but the president dies later that year. Years later a man offers to buy the Presidents gift for $1000. Ronald agrees and exchanges the gift for 20 crisp $50 bills. Did he keep his promise?
Hint:
Yes. The president was Ulysses S. Grant, who died in 1885 and whose face has been on the $50 bill since 1913. He saw the president on the bills before he made the exchange. Did you answer this riddle correctly?
YES NO
YES NO
A List Of Names Riddle
Lennie was cleaning up some old papers in his office and found a list with the following names:
Washington
Jefferson
Lincoln
Hamilton
Jackson
Grant
The last name on the list was mostly worn away and he couldnt make it out. What was the last name and why?
Washington
Jefferson
Lincoln
Hamilton
Jackson
Grant
The last name on the list was mostly worn away and he couldnt make it out. What was the last name and why?
Hint:
Franklin. Its a list of the men on U.S. currency, $1, $2, $5, $10, $20 and $50. The $100 bill has Franklin. And an interesting tidbit is that Hamilton, along with Franklin, are the only two men in the list who did not serve as president. Did you answer this riddle correctly?
YES NO
YES NO
Marrying A Hot Dog Riddle
Hint:
Paper Threes Riddle
Jenna wrote all the numbers from 300 to 400 on a piece of paper. How many times did she write the digit 3?
Hint:
Postponed Class Riddle
You show up for Monday's class and find that it's been postponed. It will be held three days after the day before the day after tomorrow. What day should you show up?
Hint:
The Emperor's Proposition Riddle
You are a prisoner sentenced to death. The Emperor offers you a chance to live by playing a simple game. He gives you 50 black marbles, 50 white marbles and 2 empty bowls. He then says, "Divide these 100 marbles into these 2 bowls. You can divide them any way you like as long as you use all the marbles. Then I will blindfold you and mix the bowls around. You then can choose one bowl and remove ONE marble. If the marble is WHITE you will live, but if the marble is BLACK... you will die."
How do you divide the marbles up so that you have the greatest probability of choosing a WHITE marble?
How do you divide the marbles up so that you have the greatest probability of choosing a WHITE marble?
Hint: The answer does not guarantee 100% you will chose a white marble, but you have a much better chance.
Place 1 white marble in one bowl, and place the rest of the marbles in the other bowl (49 whites, and 50 blacks).
This way you begin with a 50/50 chance of choosing the bowl with just one white marble, therefore life! BUT even if you choose the other bowl, you still have ALMOST a 50/50 chance at picking one of the 49 white marbles. Did you answer this riddle correctly?
YES NO
This way you begin with a 50/50 chance of choosing the bowl with just one white marble, therefore life! BUT even if you choose the other bowl, you still have ALMOST a 50/50 chance at picking one of the 49 white marbles. Did you answer this riddle correctly?
YES NO
The Picnic Pattern Riddle
There were three friends- Jade, Alicia, and Damien, and they were playing a game called "I'm Going on a Picnic." The object of the game is to figure out the pattern of the objects listed.
(Jade starts, then Alicia and Damien-Assume that they could all go to the picnic.)
Jade: I'm going on a picnic. and I'm going to bring Ants.
Alicia: I'm going to bring Dogs.
Damien: I'm bringing some Juice.
Jade: Lemons.
Alicia: An Almanac.
Damien: Art.
Jade: Iguanas.
Alicia: Money.
Damien: Dirt.
Jade: Cats.
Alicia: Igloos.
Damien: Elephants...
What is the pattern?
(Jade starts, then Alicia and Damien-Assume that they could all go to the picnic.)
Jade: I'm going on a picnic. and I'm going to bring Ants.
Alicia: I'm going to bring Dogs.
Damien: I'm bringing some Juice.
Jade: Lemons.
Alicia: An Almanac.
Damien: Art.
Jade: Iguanas.
Alicia: Money.
Damien: Dirt.
Jade: Cats.
Alicia: Igloos.
Damien: Elephants...
What is the pattern?
Hint: Look at the first letters of what Damien says, then look at the first letter of what Jade and Alicia say. Think about it, but not too hard!
They were spelling out the name of the person who would go after them.
(Damien said Juice, Art, Dirt, and Elephants-JADE) Did you answer this riddle correctly?
YES NO
(Damien said Juice, Art, Dirt, and Elephants-JADE) Did you answer this riddle correctly?
YES NO
Five Prom Couples Riddle
Five couples went to the prom as a group. The boys' names were Mark, Quintin, Jim, Bob, and James. The girls' names were Amanda, Betty, Susan, Jessica, and Jasmin. Each couple wore matching colors of either blue, yellow, red, green, or pink. Match the dates and the color they are wearing.
1) Two couples have the same first letter in their name. One of those letters is "B".
2) Susan wore red and Jessica wore blue.
3) Susan has more letters in her name than her date does.
4) Neither Mark nor Quintin went with Jasmin, who was wearing yellow.
5) Amanda went with Jim and they did not wear green.
1) Two couples have the same first letter in their name. One of those letters is "B".
2) Susan wore red and Jessica wore blue.
3) Susan has more letters in her name than her date does.
4) Neither Mark nor Quintin went with Jasmin, who was wearing yellow.
5) Amanda went with Jim and they did not wear green.
Hint:
Mark and Susan wore red.
Quintin and Jessica wore blue.
Jim and Amanda wore pink.
Bob and Betty wore green.
James and Jasmin wore yellow. Did you answer this riddle correctly?
YES NO
Quintin and Jessica wore blue.
Jim and Amanda wore pink.
Bob and Betty wore green.
James and Jasmin wore yellow. Did you answer this riddle correctly?
YES NO
Pearl Problems Riddle
"I'm a very rich man, so I've decided to give you some of my fortune. Do you see this bag? I have 5001 pearls inside it. 2501 of them are white, and 2500 of them are black. No, I am not racist. I'll let you take out any number of pearls from the bag without looking. If you take out the same number of black and white pearls, I will reward you with a number of gold bars equivalent to the number of pearls you took."
How many pearls should you take out to give yourself a good number of gold bars while still retaining a good chance of actually getting them?
How many pearls should you take out to give yourself a good number of gold bars while still retaining a good chance of actually getting them?
Hint: If you took out 2 pearls, you would have about a 50% chance of getting 2 gold bars. However, you can take even more pearls and still retain the 50% chance.
Take out 5000 pearls. If the remaining pearl is white, then you've won 5000 gold bars! Did you answer this riddle correctly?
YES NO
YES NO
100 Blank Cards Riddle
Someone offers you the following deal:
There is a deck of 100 initially blank cards. The dealer is allowed to write ANY positive integer, one per card, leaving none blank. You are then asked to turn over as many cards as you wish. If the last card you turn over is the highest in the deck, you win; otherwise, you lose.
Winning grants you $50, and losing costs you only the $10 you paid to play.
Would you accept this challenge?
There is a deck of 100 initially blank cards. The dealer is allowed to write ANY positive integer, one per card, leaving none blank. You are then asked to turn over as many cards as you wish. If the last card you turn over is the highest in the deck, you win; otherwise, you lose.
Winning grants you $50, and losing costs you only the $10 you paid to play.
Would you accept this challenge?
Hint: Perhaps thinking in terms of one deck is the wrong approach.
Yes!
A sample strategy:
Divide the deck in half and turn over all lower 50 cards, setting aside the highest number you find. Then turn over the other 50 cards, one by one, until you reach a number that is higher than the card you set aside: this is your chosen "high card."
Now, there is a 50% chance that the highest card is contained in the top 50 cards (it is or it isn't), and a 50% chance that the second-highest card is contained in the lower 50. Combining the probabilities, you have a 25% chance of constructing the above situation (in which you win every time).
This means that you'll lose three out of four games, but for every four games played, you pay $40 while you win one game and $50. Your net profit every four games is $10.
Obviously, you have to have at least $40 to start in order to apply this strategy effectively. Did you answer this riddle correctly?
YES NO
A sample strategy:
Divide the deck in half and turn over all lower 50 cards, setting aside the highest number you find. Then turn over the other 50 cards, one by one, until you reach a number that is higher than the card you set aside: this is your chosen "high card."
Now, there is a 50% chance that the highest card is contained in the top 50 cards (it is or it isn't), and a 50% chance that the second-highest card is contained in the lower 50. Combining the probabilities, you have a 25% chance of constructing the above situation (in which you win every time).
This means that you'll lose three out of four games, but for every four games played, you pay $40 while you win one game and $50. Your net profit every four games is $10.
Obviously, you have to have at least $40 to start in order to apply this strategy effectively. Did you answer this riddle correctly?
YES NO
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