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
10 From 100 Riddle
Hint:
100 Lbs Riddle
Hint:
The Tomato And The Mushroom
Hint:
Who Stole The $100,000 Riddle
A man leaves a $100,000 dollar bill on his desk and leaves work. When he returns the money is gone. He has three suspects: the cook, the cleaning lady, and the mail guy. The cook says he put the money under a book on his desk to keep it safe. They check and it is no longer there. The maid says she moved it when she was cleaning to the inside of the book between page 1 and 2. They open the book and look between page number 1 and 2 but it isn't there. The mail guy says he saw it sticking out of the book and to keep it safe he moved it to between page number 2 and 3. Once they are done the culprit is promptly arrested. Who did it and how did he know?
Hint:
The mail guy did it because if he checked between page numbers 1 and 2 page numbers 2 and 3 are opposite sides of one page and could not hold the dollar bill. Did you answer this riddle correctly?
YES NO
YES NO
Managed By Alex Ferguson Riddle
Hint:
Half A Tomato Riddle
Hint:
$100 Bill Grocery Store Thief
He then buys $70 worth of goods using the $100 bill and the owner gives $30 in change.
How much money did the owner lose?
$30, $70, $100, $130, $170, or $200?
Hint:
The best answer from the choices is the owner lost $100. The $100 bill that was stolen was then given back to the owner. What the owner loses is the $70 worth of goods and the $30 in change, which makes for a total of $70 + $30 = $100. The owner has lost $100.
Technically, the owner lost $30 plus the value, V, of the $70 of goods. Since stores typically sell goods at a markup, the value may be less than $70. But in the case of a loss leader, the owner may have lost more than $70. Did you answer this riddle correctly?
YES NO
Technically, the owner lost $30 plus the value, V, of the $70 of goods. Since stores typically sell goods at a markup, the value may be less than $70. But in the case of a loss leader, the owner may have lost more than $70. Did you answer this riddle correctly?
YES NO
Steals $100 Riddle
Hint:
You Start With 1000 Riddle
Hint:
If you said 5000 you're wrong! The answer is 4100, how?
1000 + 40 = 1040
1040 + 1000 + 30 = 2070
2070 + 1000 + 20 = 3090
3090 + 1000 = 4090
4090 + 10 = 4100 Did you answer this riddle correctly?
YES NO
1000 + 40 = 1040
1040 + 1000 + 30 = 2070
2070 + 1000 + 20 = 3090
3090 + 1000 = 4090
4090 + 10 = 4100 Did you answer this riddle correctly?
YES NO
Alex And The New Neighbor Riddle
So it is the next day. Before they leave, Alex's mother asks them what they are doing, but since Alex despises his mom and doesn't like to talk to her, he just answer with "we are going to the new neighbor, can you leave us alone?" She says "who is the new neighbor." But Alex tells her to shut up and they leave.
They ring the doorbell, the neighbor comes outside, and Alex says hello and then the neighbors name. So what is the neighbors name?
Hint:
The new neighbors name is 'Who.' ...When the mom SUPPOSEDLY asked "Who is the new neighbor?", she wasn't asking; she was making a statement. "Who is [the name of] the new neighbor." Did you answer this riddle correctly?
YES NO
YES NO
I Wish Yesterday Was Tomorrow Riddle
On which day did the teacher say this?
Hint:
It depends. The grammar is intentionally misleading; "yesterday was" is generally considered incorrect, but is still something people say. The speaker in the riddle may mean "I wish yesterday were tomorrow" or "I wish yesterday had been tomorrow", etc. So:
I wish yesterday (Wednesday) had been what tomorrow (Friday) will be = today is Thursday.
I wish yesterday had been Thursday so tomorrow would be Friday = today is any day!
I wish yesterday (Tuesday) had been [today's] tomorrow (Thursday), so that today (Wednesday) would be Friday (day after desired yesterday).
I wish yesterday (Saturday) would be [today's] tomorrow, then today (Sunday) would be Friday. Did you answer this riddle correctly?
YES NO
I wish yesterday (Wednesday) had been what tomorrow (Friday) will be = today is Thursday.
I wish yesterday had been Thursday so tomorrow would be Friday = today is any day!
I wish yesterday (Tuesday) had been [today's] tomorrow (Thursday), so that today (Wednesday) would be Friday (day after desired yesterday).
I wish yesterday (Saturday) would be [today's] tomorrow, then today (Sunday) would be Friday. Did you answer this riddle correctly?
YES NO
How Many 9 In 100 Riddle
Hint:
There are total 20 nine's between 1 and 100. 9, 19, 29, 39, 49, 59, 69, 79, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99. you can count total 9 in these series. Did you answer this riddle correctly?
YES NO
YES NO
How Many 7s Are Between 0 100 Riddle
Hint:
The answer is 20
7, 17, 27, 37, 47, 57 ,67, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 87, 97 Did you answer this riddle correctly?
YES NO
7, 17, 27, 37, 47, 57 ,67, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 87, 97 Did you answer this riddle correctly?
YES NO
A Man Steals 1000 From A Shop Riddle
Hint:
We can easily solve this mathematical problem by using the following mathematical process.
Initial loss amount = Rs. 1000
Now, we have to calculate the recovered amount,
As the man spends Rs. 700 in the shop, the shop owner will surely provide the man goods/services of Rs. 700. So, nothing will be recovered in this case.
Now, the man gave Rs. 1000 against the goods/services of Rs. 700 and got Rs. 300 change, so there will be no recovering of money for the shopkeeper.
Final loss = Initial loss - Recovered amount = 1000-0 = Rs. 1000 Did you answer this riddle correctly?
YES NO
Initial loss amount = Rs. 1000
Now, we have to calculate the recovered amount,
As the man spends Rs. 700 in the shop, the shop owner will surely provide the man goods/services of Rs. 700. So, nothing will be recovered in this case.
Now, the man gave Rs. 1000 against the goods/services of Rs. 700 and got Rs. 300 change, so there will be no recovering of money for the shopkeeper.
Final loss = Initial loss - Recovered amount = 1000-0 = Rs. 1000 Did you answer this riddle correctly?
YES NO
Add Your Riddle Here
Have some tricky riddles of your own? Leave them below for our users to try and solve.