Riddle Thread.

c_westerman13

New member
Mar 29, 2011
329
0
0
Riddles time
Post Riddles, Answer Riddles.


In a room with only 2 exits are two guards, of which one will always tell the truth, and one will always lie, and you do not know which is which. One exit leads to certain death, the other to freedom. You may ask ONE guard ONE question. What do you ask to guarantee your freedom?
 

Cpt_Oblivious

Not Dead Yet
Jan 7, 2009
6,933
0
0
c_westerman13 said:
In a room with only 2 exits are two guards, of which one will always tell the truth, and one will always lie, and you do not know which is which. One exit leads to certain death, the other to freedom. You may ask ONE guard ONE question. What do you ask to guarantee your freedom?
But if you ask only one of them about the doors then you still have a 50% chance of living. If you ask a question to find out whether they lie or not, you've still got no help on the doors. You need more questions.

And this should probably have gone in Forum Games.
 

Gxas

New member
Sep 4, 2008
3,187
0
0
A man leaps off of the roof of an eleven story building. He takes a running start and when he leaves the roof, he is traveling at 3.2m/s.

How long does it take him to reach the ground?
 

Yggdraz0r

New member
Jun 7, 2009
125
0
0
Gxas said:
A man leaps off of the roof of an eleven story building. He takes a running start and when he leaves the roof, he is traveling at 3.2m/s.

How long does it take him to reach the ground?
Less then 10 seconds?
 

SmilingKitsune

New member
Dec 16, 2008
2,397
0
0
Here is a riddle taken from Kurt Vonnegut's fantastic book The Sirens of Titan.

A man is locked in a room with nothing but a calander and a matress, how does he survive?
 

c_westerman13

New member
Mar 29, 2011
329
0
0
Cpt_Oblivious said:
c_westerman13 said:
In a room with only 2 exits are two guards, of which one will always tell the truth, and one will always lie, and you do not know which is which. One exit leads to certain death, the other to freedom. You may ask ONE guard ONE question. What do you ask to guarantee your freedom?
But if you ask only one of them about the doors then you still have a 50% chance of living. If you ask a question to find out whether they lie or not, you've still got no help on the doors. You need more questions.
no its entirely possible with only one question.

Gxas said:
A man leaps off of the roof of an eleven story building. He takes a running start and when he leaves the roof, he is traveling at 3.2m/s.

How long does it take him to reach the ground?
depends on a lot of variables:
his weight and build
the height of each storey
weather conditions
etc

but mere seconds either way
 

AnkaraTheFallen

May contain a lot of Irn Bru
Apr 11, 2011
6,323
0
0
c_westerman13 said:
Riddles time
Post Riddles, Answer Riddles.


In a room with only 2 exits are two guards, of which one will always tell the truth, and one will always lie, and you do not know which is which. One exit leads to certain death, the other to freedom. You may ask ONE guard ONE question. What do you ask to guarantee your freedom?
You ask them what the other one would say is the correct door... the one who tells the truth will always lie and tell you the wrong one... the one who lies still tells you the wrong one as well... so you choose the one they don't say
 

Redingold

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
Mar 28, 2009
1,641
0
0
1. You have two old-fashioned hourglasses. One contains five hours of sand, one contains eight. How would you go about timing eleven hours?

2. You have an old-fashioned pair of scales. Given that you must weigh a series of objects with integer masses between 1 and 40 grams, inclusive, what is the lowest number of weights needed to weigh any given object?
 

Gxas

New member
Sep 4, 2008
3,187
0
0
Yggdraz0r said:
Less then 10 seconds?
c_westerman13 said:
depends on a lot of variables:
his weight and build
the height of each storey
weather conditions
etc

but mere seconds either way
All the information needed is given. I'll give the correct answer if no one guesses within 3 more quotes.
 

hittite

New member
Nov 9, 2009
1,681
0
0
Gxas said:
A man leaps off of the roof of an eleven story building. He takes a running start and when he leaves the roof, he is traveling at 3.2m/s.

How long does it take him to reach the ground?
The rest of his life.
 

c_westerman13

New member
Mar 29, 2011
329
0
0
Redingold said:
1. You have two old-fashioned hourglasses. One contains five hours of sand, one contains eight. How would you go about timing eleven hours?

2. You have an old-fashioned pair of scales. Given that you must weigh a series of objects with integer masses between 1 and 40 grams, inclusive, what is the lowest number of weights needed to weigh any given object?
1) turn both over. when the five runs out, turn it over, once the 8 is empty, the 5 is divided into 3:2. place the 5 on its side to suspend it, run the eight fully, then use the 3 from the 5 hourglass as it finishes. 8+3=11

2)6: 1,2,4,8,16,32
 

Gxas

New member
Sep 4, 2008
3,187
0
0
hittite said:
Gxas said:
A man leaps off of the roof of an eleven story building. He takes a running start and when he leaves the roof, he is traveling at 3.2m/s.

How long does it take him to reach the ground?
The rest of his life.
DING DING!

We gave that to my Physics teacher in high school. He took the whole hour and a half of class writing it out. Bell rang, we told him the answer. Free day of class!
 

c_westerman13

New member
Mar 29, 2011
329
0
0
Gxas said:
hittite said:
Gxas said:
A man leaps off of the roof of an eleven story building. He takes a running start and when he leaves the roof, he is traveling at 3.2m/s.

How long does it take him to reach the ground?
The rest of his life.
DING DING!

We gave that to my Physics teacher in high school. He took the whole hour and a half of class writing it out. Bell rang, we told him the answer. Free day of class!
that isn't a specific length of time.

EDIT: specific length of time with a known magnitude.
 

Doive

New member
Nov 6, 2010
165
0
0
c_westerman13 said:
Riddles time
Post Riddles, Answer Riddles.


In a room with only 2 exits are two guards, of which one will always tell the truth, and one will always lie, and you do not know which is which. One exit leads to certain death, the other to freedom. You may ask ONE guard ONE question. What do you ask to guarantee your freedom?
"If I was to ask the other guard if his door is the way out what would he say"

If the guard answers "yes" they are guarding the way out, if he answers "no" he is guarding the death door.
 

norwegian-guy

New member
Jan 17, 2011
266
0
0
What happens when an unstopable force meets an immovable object?

OR:

It cannot be heared, it cannot be felt.
It cannot be seen, it cannot be smeled.
It lies behind the stars and under hills,
and empty holes it fills.
Comes first, follows after.
Ends life, kills laughter.
Of what do I speak?