The Dentist And The Computer Riddle
Hint:
Golfing Dentists Riddle
Hint:
Dentist In Panama Riddle
Hint:
A Dental Departure
Hint:
Dentists Love Potatoes Riddle
Hint:
A Dead Chemist Riddle
Hint:
Apples And Bananas Riddle
Hint:
Man In A Hole Riddle
Hint:
Man In The Maibox
Hint:
An Airplane Pilot Riddle
Hint:
The 100 Seat Airplane
People are waiting in line to board a 100-seat airplane. Steve is the first person in the line. He gets on the plane but suddenly can't remember what his seat number is, so he picks a seat at random. After that, each person who gets on the plane sits in their assigned seat if it's available, otherwise they will choose an open seat at random to sit in.
The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?
The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?
Hint: You don't need to use complex math to solve this riddle. Consider these two questions:
What happens if somebody sits in your seat?
What happens if somebody sits in Steve's assigned seat?
The correct answer is 1/2.
The chase that the first person in line takes your seat is equal to the chance that he takes his own seat. If he takes his own seat initially then you have a 100% chance of sitting in your seat, if he takes your seat you have a 0 percent chance. Now after the first person has picked a seat, the second person will enter the plan and, if the first person has sat in his seat, he will pick randomly, and again, the chance that he picks your seat is equal to the chance he picks someone your seat. The motion will continue until someone sits in the first persons seat, at this point the remaining people standing in line which each be able to sit in their own seats. Well how does that probability look in equation form? (2/100) * 50% + (98/100) * ( (2/98) * 50% + (96/98) * ( (2/96) * (50%) +... (2/2) * (50%) ) ) This expansion reduces to 1/2.
An easy way to see this is trying the problem with a 3 or 4 person scenario (pretend its a car). Both scenarios have probabilities of 1/2. Did you answer this riddle correctly?
YES NO
The chase that the first person in line takes your seat is equal to the chance that he takes his own seat. If he takes his own seat initially then you have a 100% chance of sitting in your seat, if he takes your seat you have a 0 percent chance. Now after the first person has picked a seat, the second person will enter the plan and, if the first person has sat in his seat, he will pick randomly, and again, the chance that he picks your seat is equal to the chance he picks someone your seat. The motion will continue until someone sits in the first persons seat, at this point the remaining people standing in line which each be able to sit in their own seats. Well how does that probability look in equation form? (2/100) * 50% + (98/100) * ( (2/98) * 50% + (96/98) * ( (2/96) * (50%) +... (2/2) * (50%) ) ) This expansion reduces to 1/2.
An easy way to see this is trying the problem with a 3 or 4 person scenario (pretend its a car). Both scenarios have probabilities of 1/2. Did you answer this riddle correctly?
YES NO
The Sturdy Feet Of Man
I cannot stand on my two feet;
I need help from one who can.
But in motion, they're superior
To the sturdy feet of man.
What am I?
I need help from one who can.
But in motion, they're superior
To the sturdy feet of man.
What am I?
Hint:
Bike Art Riddle
Hint:
A Man Was Murdered Riddle
A man got killed in his office. The suspects are Edison, Maxis, Jason, Janna, Sofia, Patrick. A calendar near the man has blood, written 6, 4, 9, 10, 11. Who is the killer?
Hint:
Jason is the killer.
The numbers represent the starting letter of the month they stand for in a calendar:
6 June (J)
4 April (A)
9 September (S)
10 October (O)
11 November (N) Did you answer this riddle correctly?
YES NO
The numbers represent the starting letter of the month they stand for in a calendar:
6 June (J)
4 April (A)
9 September (S)
10 October (O)
11 November (N) Did you answer this riddle correctly?
YES NO
20 Apples Riddle
There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?
Hint:
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