In need of a good riddle...

[sswingle]

Originally posted by: letdown427

Originally posted by: blackdogdeek
it is raining outside and 4 people in a car need to get to the front door of the building but there is only 1 umbrella. one person must bring the umbrella back to get another person after each trip from the car to the door. the pair walking from the car to the door can only walk as fast as the slower person can walk. one person takes 10 minutes to make the trip, one person takes 5 minutes to make the trip, one person takes 2 minutes to make the trip and the last person takes 1 minute to make the trip.

what is the least amount of time it will take to get everyone from the car to the building?

19minutes maybe? Or have I just made myself look more stupid than usual?

I agree, 19 min

 

[txrandom]

Originally posted by: DaShen
I am sitting in the middle of a lake on a boat that floats. I have a rock in the boat. I throw it overboard and the rock sinks to the bottom of the lake. The the lake sea level rise or lower or stay the same.

*HINT* "Eureka"

Stay the same?

 

[blackdogdeek]

Originally posted by: ScottSwingleComputers

Originally posted by: letdown427

Originally posted by: blackdogdeek
it is raining outside and 4 people in a car need to get to the front door of the building but there is only 1 umbrella. one person must bring the umbrella back to get another person after each trip from the car to the door. the pair walking from the car to the door can only walk as fast as the slower person can walk. one person takes 10 minutes to make the trip, one person takes 5 minutes to make the trip, one person takes 2 minutes to make the trip and the last person takes 1 minute to make the trip.

what is the least amount of time it will take to get everyone from the car to the building?

19minutes maybe? Or have I just made myself look more stupid than usual?

I agree, 19 min

it can be done in less time.

 

[letdown427]

Originally posted by: blackdogdeek
that is the usual first answer. however, it can be done in less time.

Is that because you've conciously said the 'last' person takes 1minute to do the trip? i.e you could make the 10minute slacker go last and would only take 1 minute?

D'ah well, I got the usual answer at least.

 

[DaShen]

Originally posted by: blackdogdeek
it is raining outside and 4 people in a car need to get to the front door of the building but there is only 1 umbrella. one person must bring the umbrella back to get another person after each trip from the car to the door. the pair walking from the car to the door can only walk as fast as the slower person can walk. one person takes 10 minutes to make the trip, one person takes 5 minutes to make the trip, one person takes 2 minutes to make the trip and the last person takes 1 minute to make the trip.

what is the least amount of time it will take to get everyone from the car to the building?

That one is easy. It is just taking the fastest with the slowest walker, and going back and using the fastest with slowest the whole time to limit the lag time going back.

 

[sswingle]

Originally posted by: DaShen

Originally posted by: blackdogdeek
it is raining outside and 4 people in a car need to get to the front door of the building but there is only 1 umbrella. one person must bring the umbrella back to get another person after each trip from the car to the door. the pair walking from the car to the door can only walk as fast as the slower person can walk. one person takes 10 minutes to make the trip, one person takes 5 minutes to make the trip, one person takes 2 minutes to make the trip and the last person takes 1 minute to make the trip.

what is the least amount of time it will take to get everyone from the car to the building?

That one is easy. It is just taking the fastest with the slowest walker, and going back and using the fastest with slowest the whole time to limit the lag time going back.

Thats what gets 19 min. I remember seeing this, but I forget how to make it less.

 

[letdown427]

Originally posted by: DaShen
That one is easy. It is just taking the fastest with the slowest walker, and going back and using the fastest with slowest the whole time to limit the lag time going back.

But that gives 19minutes, so apparently not.

EDIT: As Scott said

 

[DaShen]

Originally posted by: txrandom

Originally posted by: DaShen
I am sitting in the middle of a lake on a boat that floats. I have a rock in the boat. I throw it overboard and the rock sinks to the bottom of the lake. The the lake sea level rise or lower or stay the same.

*HINT* "Eureka"

Stay the same?

Nope. Volume and surface area problem (think density and volume displaced).

 

[sao123]

Originally posted by: letdown427

Originally posted by: sao123
I ring like a bell.
I speak with many voices.
I listen like a spy and keep no secrets.
I can be on a leash like a dog, or free like a bird.
I'm know how to count, and even my ABC's.


What is i?

First thought would be a Phone?

correct

 

[DaShen]

Originally posted by: letdown427

Originally posted by: DaShen
That one is easy. It is just taking the fastest with the slowest walker, and going back and using the fastest with slowest the whole time to limit the lag time going back.

But that gives 19minutes, so apparently not.

EDIT: As Scott said

hmmm, then I don't know.

 

[blackdogdeek]

Originally posted by: DaShen

Originally posted by: blackdogdeek
it is raining outside and 4 people in a car need to get to the front door of the building but there is only 1 umbrella. one person must bring the umbrella back to get another person after each trip from the car to the door. the pair walking from the car to the door can only walk as fast as the slower person can walk. one person takes 10 minutes to make the trip, one person takes 5 minutes to make the trip, one person takes 2 minutes to make the trip and the last person takes 1 minute to make the trip.

what is the least amount of time it will take to get everyone from the car to the building?

That one is easy. It is just taking the fastest with the slowest walker, and going back and using the fastest with slowest the whole time to limit the lag time going back.

that is the approach that everyone believes is best and what results in a time of 19 minutes. however, the solution requires less than 19 minutes.

 

[BrownTown]

1+2 go there
1 comes back
5+10 go there
2 comes back
2+1 go there

and we are done in: 17

 

[blackdogdeek]

Originally posted by: BrownTown
1+2 go there
1 comes back
5+10 go there
2 comes back
2+1 go there

and we are done in: 17

ding ding!

 

[letdown427]

Originally posted by: blackdogdeek
that is the approach that everyone believes is best and what results in a time of 19 minutes. however, the solution requires less than 19 minutes.

Ah, I see what to do
EDIT: oh. post above. damn. lol.

 

[sswingle]

This is fun. Anyone figure out the rope one?

 

[juills]

Yeah, I'm still waiting to hear the answer on the rope one too... I suggested an answer earlier in the post, but I haven't heard if it's right or not.

 

[Adn4n]

Originally posted by: 02ranger
I don't know how old this is, but I got it from my Dad's boss. It doesn't work too good on paper, but spoken it tricks most people.

Think of words that end in -gry. Hungry and Angry are two of them. There are three words in the english language. What is the third word?

Answer






The answer is language. It should really be written as There are three words in "The English Language." I just didn't want to give it away in case somebody hasn't seen it before. I actually never could find another word that ends in gry. Thats the best I have for now.

Hungary is an English word

 

[letdown427]

Originally posted by: Adn4n
Hungary is an English word

Yes, as is chicken. What is your point?

 

[DaShen]

This one is from an old thread.

I have 100 captives.

I tell them that tomorrow I will line them up in single file and place a black or white cap on top of each persons head. Every person can see
If you guess the color of the hat on your head, I will set you free, otherwise I will kill you.

There is a plan to get 99% guaranteed free.

 

[DaShen]

Originally posted by: blackdogdeek

Originally posted by: BrownTown
1+2 go there
1 comes back
5+10 go there
2 comes back
2+1 go there

and we are done in: 17

ding ding!

Hahaha... Oops.

That makes much more sense.

**EDIT**
Now that I think about it, this one is the same as the carrot, rabbit, wolf one. Just with numbers.

 

[sswingle]

Originally posted by: DaShen
This one is from an old thread.

I have 100 captives.

I tell them that tomorrow I will line them up in single file and place a black or white cap on top of each persons head. Every person can see
If you guess the color of the hat on your head, I will set you free, otherwise I will kill you.

There is a plan to get 99% guaranteed free.

Ask your neighbor?

 

[blackdogdeek]

Originally posted by: DaShen
2 ropes (each of varying lengths)

Both ropes when lit on one end burn for an hour. Both rope at different points burn at variable rates.

You are given a box of matches and told to measure 15 minutes.

How do you measure it?

here is a guess.

on one rope, light both ends at the same time and simultaneously light only one end of the other rope. presumably, when the dual-lit rope finishes burning, 1/2 hour will have transpired. when that happens light the other end of the other rope and the time it takes for the remainder of that rope to burn should be 1/4 hour.

if you want to be able to record 15 minutes at any time then when the first rope finishes burning just put out the fire on the second rope. whenever you want to record your 15 minutes, light both ends simultaneously.

 

[juills]

Originally posted by: DaShen
2 ropes (each of varying lengths)

Both ropes when lit on one end burn for an hour. Both rope at different points burn at variable rates.

You are given a box of matches and told to measure 15 minutes.

How do you measure it?

Any thoughts on the answer to this one???

 

[TXHokie]

Old elementary school riddle -
Two hunters went hunting and shot 188 ducks, they split the loot in half and each got 100. How is that possible?

 

[Kelnoen]

Rope one: Just fold one piece of rope in half twice, that gives you 1/4 of the rope length, burn it.

Caps: Do they know if other people guess correctly?

oh and btw, Gry (verb) - To rage or roar.