The riddle thread - Page 3

On March 15 2009 08:21 fanatacist wrote:
Five men walk up the mountain. The person in front is six years older than the person in the back. The person walking second is half of three times the front person's age. The person walking in third is the product of the age of the first and last person, divided by the half of the age of the second person, rounded to the nearest digit. The age of the fourth person is the difference between the last person's age and the third person's age, multiplied by 3. The sum of the last person's age and the third person's age is 79.

If all the men are aged between 30 and 50, what is the age of each one?

EDIT: Sorry for the multiple edits, had to fix it because I miscalculated something.

On March 15 2009 11:07 LTT wrote:


There is something wrong with your math. Label the people A,B,C,D and E in order.

Sentence 1 means A = E + 6
Sentence 2 means B = 3A/2

Your range is 30-50

The Minimum age is 30, which means the lowest possible age for A is 36. That means the lowest possible age for B is 54 which is outside your range.

On March 15 2009 08:45 imBLIND wrote:
A man lives on the 30th floor of an apartment building. Everyday when he returns home from work, he takes the elevator. If he is with another person, then he goes straight to the 30th floor and to his apartment building. If he is by himself, he goes to the 28th floor and walks up the last two flights of stairs to his apartment. Why?

On March 15 2009 14:19 thunk wrote:


imDUMB. What's the answer to this one?

On March 15 2009 05:56 EffOrt wrote:
1.In this thread you will write some riddles and in spoiler write the answer
2.If you have a riddle but do not know the answer also post that in bold or make it stand out some way
3.If you're going to answer someone else's riddle please put it in spoiler
btw this is just a example so don't take it to seriously ^^

example 1.What can you catch but you can't throw?
+ Show Spoiler +

example 2.What came first the chicken or the egg?
Don't know

#1.

You are wearing a blindfold and thick gloves. An infinite number of quarters are laid out before you on a table of infinite area. Someone tells you that 20 of these quarters are tails and the rest are heads. He says that if you can split the quarters into 2 piles where the number of tails quarters is the same in both piles, then you win all of the quarters. You are allowed to move the quarters and to flip them over, but you can never tell what state a quarter is currently in (the blindfold prevents you from seeing, and the gloves prevent you from feeling which side is heads or tails). How do you partition the quarters so that you can win them all?

Definitions

The dilemma can be interpreted differently using different definitions of a chicken or an egg. In biology, the term egg is biologically ambiguous and the theory of punctuated equilibrium, for example, does not support a clear division between a chicken and the closest ancestors of that chicken. Both of those factors tend to contribute to the circular nature of the question (causing problems similar to either a hasty generalization or a fallacy of definition). Below are a few different definitions that could be assumed and their logical outcomes.[6]

If the egg is not necessarily of any specific type:

Then it could be said that the egg came first, because other animals had been laying eggs long before chickens existed, such as the dinosaurs. In biology, egg is used as a general term in this way.

*If only an egg that will hatch into a chicken can be considered a chicken egg:

Then a re-consideration of the original question suggests: Some animal other than a chicken laid the first chicken egg which contained the first chicken. In this case the chicken egg came before the chicken. In reality, many scientific theories suggest that this would not have been a simple event. For example, the theory of punctuated equilibrium theorizes that the actual speciation of an organism from its ancestral species is usually the result of many mutations combined with new geographical surroundings, called cladogenesis.

If only an egg laid by a chicken can be considered a chicken egg:

Then a re-consideration of the original question suggests: The first chicken (which hatched from a non-chicken egg) laid the first chicken egg. In this case the chicken came before the chicken egg. Again, this would not necessarily be a straightforward event.

On March 15 2009 16:00 imBLIND wrote:
A man was shot multiple times in a house. There were 10 holes in the victim's body; 4 were exit wounds. The bullets were nowhere to be seen in the room even though there were visible bullet holes and ricochets. Where did the bullets go?
Afterwards, they also noticed that the gun was missing. The dogs could not smell it and the metal detectors could not find it. They know its a handgun or revolver and that it is in the house. All they know about the murder is that he is a dancer. Where is the gun?

On March 15 2009 16:41 deathgod6 wrote:

Wait.. is the victim the dancer or the murderer a dancer?

On March 15 2009 13:16 EffOrt wrote:
you have 20 coin machines, each of which produce the same kind of coin. you know how much a coin is supposed to weigh. one of the machines is defective, in that every coin it produces weighs 1 ounce less than it is supposed to. you also have an electronic weighing machine. how can you determine which of the 20 machines is defective with only one weighing? (by one use, we mean you put a bunch of stuff on the machine and read a number, and that's it -- you not allowed to accumulate weight onto the machine and watch the numbers ascend, because that's just like multiple weighings). you are allowed to crank out as many coins from each machine as you like.

On March 15 2009 08:21 fanatacist wrote:
Five men walk up the mountain. The person in front is six years older than the person in the back. The person walking second is half of three times the front person's age. The person walking in third is the product of the age of the first and last person, divided by the half of the age of the second person, rounded to the nearest digit. The age of the fourth person is the difference between the last person's age and the third person's age, multiplied by 3. The sum of the last person's age and the third person's age is 79.

If all the men are aged between 30 and 50, what is the age of each one?

EDIT: Sorry for the multiple edits, had to fix it because I miscalculated something.

On March 15 2009 16:00 imBLIND wrote:
A man was shot multiple times in a house. There were 10 holes in the victim's body; 4 were exit wounds. The bullets were nowhere to be seen in the room even though there were visible bullet holes and ricochets. Where did the bullets go?
Afterwards, they also noticed that the gun was missing. The dogs could not smell it and the metal detectors could not find it. They know its a handgun or revolver and that it is in the house. All they know about the murderer is that he is a dancer. Where is the gun?