3 Envelops Riddle
You are sitting in front of your interviewer. He gives you three envelopes. One of them contains an offer letter and the other two are empty. You pick up one of them. Now, the interviewer opens up one of the envelope lying on the table and you find out that it is blank.
Now, he gives you a chance to switch your envelope with the one on the table. Would you switch it? Why or why not?
Now, he gives you a chance to switch your envelope with the one on the table. Would you switch it? Why or why not?
Hint:
Yes, you should switch the envelope. In the beginning when you picked up the envelope, you had a 1/3 probability of finding an offer letter in the envelope. There was 2/3 chance that the letter was there in the two envelopes on the table.
If you keep your selected envelope, you still have a 1/3 chance of finding an offer letter in that. However, since the interviewer has removed one empty envelope from the table, if you switch, you have a probability of 2/3 that the offer letter is inside that. Did you answer this riddle correctly?
YES NO
If you keep your selected envelope, you still have a 1/3 chance of finding an offer letter in that. However, since the interviewer has removed one empty envelope from the table, if you switch, you have a probability of 2/3 that the offer letter is inside that. Did you answer this riddle correctly?
YES NO
The Man At The Door
In a hotel, a man was sleeping when he heard a knock on the door. He shifted the blanket and stepped down from the bed. He waked to the door and opened it to find a stranger standing outside.
Upon opening the gate, that stranger said, "Pardon me, I must have made a mistake. I thought this was my room."
The stranger then walked the corridor and climbed down the stairs. The man closed the door and immediately called the security. He asked them to arrest that stranger immediately.
Why did he asked them to arrest that stranger? What made him suspicious?
Upon opening the gate, that stranger said, "Pardon me, I must have made a mistake. I thought this was my room."
The stranger then walked the corridor and climbed down the stairs. The man closed the door and immediately called the security. He asked them to arrest that stranger immediately.
Why did he asked them to arrest that stranger? What made him suspicious?
Hint:
The stranger said that he thought the room was his. If so, he must have had the keys to the room and thus he must not have knocked. Did you answer this riddle correctly?
YES NO
YES NO
The Psychic Son Riddle
It's hard being a mother. I recently found out my son is psychic. He's got this habit of pointing at people's faces sometimes. My husband and I realized that whenever our son points at somebody like that, it means they're going to die within three days. Last year, he pointed at his grandfather. Three days later, his grandfather died of a heart attack. A few months ago he pointed to a picture of an actress in a magazine. Three days later, she was killed in a car accident. Today. When I went to turn on the TV, my son was pointing at the screen. When I turned it on the president was giving a speech. I can't believe the president is going to die, but my son is never wrong.
Why was the real reason her son was pointing at the television?
Why was the real reason her son was pointing at the television?
Hint:
Her son was pointing at her reflection on the TV screen. The mother is going to die in three days.
Did you answer this riddle correctly?
YES NO
Did you answer this riddle correctly?
YES NO
Invited To Dinner Riddle
A few days ago, I was invited to dinner at a friend's house. The strange thing is, my friend recently got involved with some weird religious cult. While I was there, he served up some type of meat, but he wouldn't tell me what kind of meat it was. It kind of freaked me out. For a second, I wondered if it was human meat, but then, after I ate it, I knew it definitely wasn't human meat.
What's really going on?
What's really going on?
Hint:
The guy who was invited over was a cannibal. How else would he have known it wasn't human meat if he'd never had human meat to begin with? Did you answer this riddle correctly?
YES NO
YES NO
Not Seen Nor Felt Riddle
It cannot be seen, it cannot be felt,
Cannot be heard, cannot be smelt,
Lies behind stars and under hills,
And empty holes it fills.
Comes first follows after,
Ends life kills laughter.
What am I?
Cannot be heard, cannot be smelt,
Lies behind stars and under hills,
And empty holes it fills.
Comes first follows after,
Ends life kills laughter.
What am I?
Hint:
The Egg Spinning Competition
You are a junior detective investigating a case. Boys at an apartment complain that every day, they have an egg spinning competition with only raw eggs, and every day one particular boy wins.
The boys want you to find out how. You are observing the boy spinning an egg when suddenly it drops to the floor. The apartment clerk casually hands him a broom to clean it up, as if it happens every day. You now know why the boy always wins the daily competition. How?
The boys want you to find out how. You are observing the boy spinning an egg when suddenly it drops to the floor. The apartment clerk casually hands him a broom to clean it up, as if it happens every day. You now know why the boy always wins the daily competition. How?
Hint:
The clerk handed the boy a broom, so the egg the boy was spinning must have been hard-boiled. If the egg was raw, the clerk would have handed the boy a mop. Did you answer this riddle correctly?
YES NO
YES NO
One Snowy Night Riddle
One snowy night, Sherlock Holmes was in his house sitting by a fire. All of a sudden a snowball came crashing through his window, breaking it. Holmes got up and looked out the window just in time to see three neighborhood kids who were brothers run around a corner.
Their names were John Crimson, Mark Crimson and Paul Crimson. The next day Holmes got a note on his door that read ? Crimson. He broke your window. Which of the three Crimson brothers should Sherlock Holmes question about the incident?
Their names were John Crimson, Mark Crimson and Paul Crimson. The next day Holmes got a note on his door that read ? Crimson. He broke your window. Which of the three Crimson brothers should Sherlock Holmes question about the incident?
Hint:
He should question Mark Crimson.
? = question MARK, so the note on the door reads Question Mark Crimson. He broke your window. Did you answer this riddle correctly?
YES NO
? = question MARK, so the note on the door reads Question Mark Crimson. He broke your window. Did you answer this riddle correctly?
YES NO
John's Three Daughters Riddle
John has three daughters who are all unmarried. The youngest always lies, the oldest always tells the truth, and the one in the middle either tells the truth or lies. A very rich young man comes to John's house and says he wishes to marry one of his daughters. Naturally he wants to marry the oldest or the youngest so he will always know if she is lying or telling the truth. John agrees but says he can only ask one of the girls a yes or no question to decide which one he marries. They all look the same age.
What one question does he ask one of the daughters at random to figure out which daughter is the youngest or oldest?
What one question does he ask one of the daughters at random to figure out which daughter is the youngest or oldest?
Hint:
"Is she older than her?"
Explanation: (He would ask one of the daughters if one of the other daughters is older than the last daughter). He always should pick the younger daughter based on what he knows. If he asks the older daughter and she says yes, then the youngest daughter will be known. If he asks the older daughter and she says no, then the youngest daughter is the other one. If he asks the youngest daughter and she says yes, she is lying and he will still pick the oldest. If he asks the youngest and she says no, he will just pick the other like in the first case. If he asks the middle daughter it doesn't matter because both will be acceptable choices. Did you answer this riddle correctly?
YES NO
Explanation: (He would ask one of the daughters if one of the other daughters is older than the last daughter). He always should pick the younger daughter based on what he knows. If he asks the older daughter and she says yes, then the youngest daughter will be known. If he asks the older daughter and she says no, then the youngest daughter is the other one. If he asks the youngest daughter and she says yes, she is lying and he will still pick the oldest. If he asks the youngest and she says no, he will just pick the other like in the first case. If he asks the middle daughter it doesn't matter because both will be acceptable choices. Did you answer this riddle correctly?
YES NO
Center Of Gondor Riddle
Hint:
A Couple Of Cannibals Riddle
Michelangelo is being chased by a couple of cannibals who will kill him as soon as they get a hold of him. The only way to get rid of them is crossing the river bridge made of ropes and cut it on reaching the other end. He have found two diamonds in the woods each weighing 8 lbs. The rope is weak and can only accommodate a weight of 150 lbs. He weighs 140 lbs. Still he manages to cross the bridge and get rid of the cannibals with the diamonds without taking off any kind of clothing.
How?
How?
Hint:
Michelangelo juggles the diamonds across while crossing the bridge. Did you answer this riddle correctly?
YES NO
YES NO
The Perfect Pill Riddle
The world is facing a serious viral infection. The government of various countries have issued every citizen two bottles. You as well have been given the same. Now one pill from each bottle is to be taken every day for a month to become immune to the virus. The problem is that if you take just one, or if you take two from the same bottle, you will die a painful death.
While using it, you hurriedly open the bottles and pour the tablets in your hand. Three tablets come down in your hand and you realize they look exactly the same and have same characteristics. You cant throw away the pill as they are limited and you cant put them back or you may put it wrong and may die someday.
How will you ensure that you are taking the right pill?
While using it, you hurriedly open the bottles and pour the tablets in your hand. Three tablets come down in your hand and you realize they look exactly the same and have same characteristics. You cant throw away the pill as they are limited and you cant put them back or you may put it wrong and may die someday.
How will you ensure that you are taking the right pill?
Hint:
You must put labels on the tablets as A and B before using. In that case, if you pour tablets together, you will get 3A, 2A 1B, 1A 2B or 3B. If they are from the same bottles you can take one from another bottle and save the remaining two for another day. If you get two from same and one from other, you can draw one from another bottle and you will have two pairs of which you can eat one and save the other. Did you answer this riddle correctly?
YES NO
YES NO
The Multistory Building Suicide Riddle
A homicide detective is called upon a crime scene. He finds that a body is lying on the ground in front of a multistory building. By all the means, it looks like a simple suicide case. But there are doubts in his mind.
He goes to the first floor and moves into the room facing the direction of the body. He opens the window in that direction and looks down towards his team. The he goes to the second floor and again moves into the room facing that direction, opens the window and looks down at his team.
He continues with the same process till the top floor. After that, he returns back to where his team is standing. He tells them that it is a suicide.
How did he come to such a conclusion?
He goes to the first floor and moves into the room facing the direction of the body. He opens the window in that direction and looks down towards his team. The he goes to the second floor and again moves into the room facing that direction, opens the window and looks down at his team.
He continues with the same process till the top floor. After that, he returns back to where his team is standing. He tells them that it is a suicide.
How did he come to such a conclusion?
Hint:
At every floor, the detective had to open the window himself. If the man had committed suicide, then at least one of the windows must have been open. A person who is committing suicide wont close the window behind him. Thus he knows that someone pushed him off the edge and closed the window afterwards. Did you answer this riddle correctly?
YES NO
YES NO
Peter's Proposal Riddle
A couple - Peter Parker and Mary Jane are madly in love with each other, but they live miles apart. Peter wants to send a gold ring to Mary to celebrate their first anniversary together but in a country where people steal anything unlocked, he can't send it to her without locking it inside a box.
Now, Peter and Mary have a lot of padlocks with them, but they don't have the key to the padlock for one another's.
How will Peter send the ring now?
Now, Peter and Mary have a lot of padlocks with them, but they don't have the key to the padlock for one another's.
How will Peter send the ring now?
Hint:
Peter will have to use a lock box that can hold two locks. He will put the ring in a box and will mail it to Mary. Upon receiving the box, Mary will put her own lock box inside and will send back to Peter. Peter can then-then take off his lock and send it off to Mary again. Did you answer this riddle correctly?
YES NO
YES NO
Australia And America Riddle
Hint:
A Message From An Elderly Woman
A young lady was approached by an elderly woman who took her hand and meeting her eyes said to her, "You look starkly similar of my daughter. I lost her last month. I loved her a lot. Can you do me a favor? Can you say 'Goodbye mother' as I leave this restaurant. I will feel good if you do."
The young lady was puzzled but seeking her kind eyes, she agreed. As the elderly woman was leaving the restaurant, she said, "Goodbye mother" waving her hand toward her with a kind expression on her face.
Soon after, she received the shock of her life. Can you guess what it was?
The young lady was puzzled but seeking her kind eyes, she agreed. As the elderly woman was leaving the restaurant, she said, "Goodbye mother" waving her hand toward her with a kind expression on her face.
Soon after, she received the shock of her life. Can you guess what it was?
Hint:
The young lady was presented with a bill which belonged to the elderly woman. She had asked the waiter to collect the bill from her daughter. Did you answer this riddle correctly?
YES NO
YES NO
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