Home › Forums › Decaffeinated Coffee › The Riddle Thread….
- This topic has 2,250 replies, 179 voices, and was last updated 3 years, 1 month ago by noitallmr.
-
AuthorPosts
-
September 21, 2010 6:46 pm at 6:46 pm #1069180blinkyParticipant
There is a first time for e/t
September 21, 2010 6:47 pm at 6:47 pm #1069181YW Moderator-80Memberwe’ll see
September 21, 2010 6:50 pm at 6:50 pm #1069182blinkyParticipantmr. 80 why don’t you try to figure it out so you can prove ICOT wrong?
September 21, 2010 6:51 pm at 6:51 pm #1069183YW Moderator-80Memberits too simple and obvious
i dont want to embarrass anyone
September 21, 2010 6:52 pm at 6:52 pm #1069184blinkyParticipantOh right! How kind of you:)
September 21, 2010 7:12 pm at 7:12 pm #1069185Dr. PepperParticipantThe value of e can be derived in a number of ways.
By definition, substituting a large number for x into (1 + 1/x)^x will give you an approximation.
Using a Taylor Series will give you =>
e = 1/0! + 1/1! + 1/2! + 1/3! ….
Obviously the more terms in the infinite series you use, the better the approximation.
(x! = x * (x – 1) * (x – 2) … * 3 * 2 * 1)
September 21, 2010 7:20 pm at 7:20 pm #1069186squeakParticipantCan I offer a prize to make it interesting?
September 21, 2010 8:35 pm at 8:35 pm #1069187blinkyParticipantICOT- did you get an updated answer yet?
September 21, 2010 8:50 pm at 8:50 pm #1069188Dr. PepperParticipantDid that answer your question?
September 21, 2010 8:58 pm at 8:58 pm #1069189blinkyParticipantDoc, are you talking to me?
September 21, 2010 9:16 pm at 9:16 pm #1069190Dr. PepperParticipantblinky-
No, sorry, I was talking to Squeak.
We seem to be having a disconnect somewhere and I was hoping to get it resolved before I leave for the day.
September 21, 2010 10:34 pm at 10:34 pm #1069191I can only tryMemberModerator-80–
“icot does not make mistakes“
1) Wow – how can I meet that guy? I never met anyone like that before.
2) There’s a poster with a SN like that, but you’re clearly not referring to him, since on the following post he starts with all of the characters on the west bank of the river, then provides a solution which begins with all characters on the east side of the river
http://www.theyeshivaworld.com/coffeeroom/topic/the-riddle-thread/page/30#post-148357
3) Did I ever tell you about the time I tested a copper tubing gas line splice with a cigarette lighter? (true story)
blinky–
How about this?
Offer the canibals some of the fine aged hard cheese that you always carry with you. Once they have eaten, point out that they must now wait six hours until they eat meat. You now have a six-hour window in which to cross safely.
Ok, Ok…
we have three canibals and three tourists on the east side of the river, needing to cross to the west bank in a two-person canoe.
There can never be tourists on the same side of the river as a larger number of canibals.
Key:
C = canibal
T = tourist
W = west side of river
E = east side of river
1) 2 canibals cross together
result – e=3t,1c w=0t,2c
2) 1 canibal comes back alone.
result – e=3t,2c w=0t,1c
3) two canibals cross together
result – e=3t,0c w=0t,3c
4) 1 canibal comes back alone.
result – e=3t,1c w=0t,2c
5) two tourists cross together
result – e=1t,1c w=2t,2c
6) 1 tourist and 1 canibal come back together.
result – e=2t,2c w=1t,1c
7) two tourists cross together
result – e=0t,2c w=3t,1c
8) 1 canibal comes back alone.
result – e=0t,3c w=3t,0c
9) two canibals cross together
result – e=0t,1c w=3t,2c
10) 1 canibal comes back alone.
result – e=0t,2c w=3t,1c
11) two canibals cross together
result – e=0t,0c w=3t,3c
September 21, 2010 10:46 pm at 10:46 pm #1069192YW Moderator-80Membericot your original answer was correct!
however to work it out, you have to consider quantum probability waves and the possibility of a worm hole connecting two sides of a localized warped spacetime region
September 22, 2010 1:24 am at 1:24 am #1069193I can only tryMemberModerator-80-
That equation is the real McCoy – it was too taxing for my intrepid PC.
I didn’t think it would faze ‘er, but it caused a problem with the cd-romulan drive.
September 22, 2010 1:31 am at 1:31 am #1069194I can only tryMemberIt’s Elementary
(for all the math mavinim – and others, too)
Go from ONE to TWO in nine easy steps.
Start with O-N-E, finish with T-W-O and insert eight three-letter words between them.
Each three letter word must be valid (in the Scrabble dictionary).
Each three-letter word can only have one letter different from the preceding word.
ONE
_ _ _
_ _ _
_ _ _
_ _ _
_ _ _
_ _ _
_ _ _
_ _ _
TWO
September 22, 2010 1:33 am at 1:33 am #1069195I can only tryMember(this was posted on the preceding page, but may have gotten lost in the shuffle. or, people may just not be interested)
Truth To Tell
As you journey through the black-and-white world of logic puzzles, you arrive at the inn in the town of YinYang.
The denizens of this town either tell only the truth or only lies.
Fortunately, each citizen wears a cap with an embroidered “L” if he’s a liar or a “T” if he’s a truth-teller.
Unfortunately, today is laundry day, and all the caps are in the wash.
You approach a table at which four men are seated and ask “Which of you is a truth-teller?”
Here are their answers:
Rube – “More than one”
Sy – “At least two”
Leo – “Fewer than four”
Jim – “Exactly three”
Who (if anyone) is telling the truth?
Who (if anyone) is lying?
How do you know?
(from a puzzle magazine)
September 29, 2010 3:35 am at 3:35 am #1069196I can only tryMemberIt’s Elementary – Answer
Go from ONE to TWO in nine easy steps.
Start with O-N-E, finish with T-W-O and insert eight three-letter words between them
Each three letter word must be valid (in the Scrabble dictionary).
Each three-letter word can only have one letter different from the preceding word.
ONE
owe
ewe
eye
bye
bee
tee
toe
too
TWO
September 29, 2010 3:52 am at 3:52 am #1069197I can only tryMemberTruth To Tell – Answer
September 29, 2010 4:05 am at 4:05 am #1069198I can only tryMemberWho was the last man to be pictured on the front of circulating U.S. coins who was never a president of the U.S.?
Which coin?
October 4, 2010 3:09 pm at 3:09 pm #1069199Dr. PepperParticipantWas it Ben Franklin on the Franflin Half Dollar?
October 4, 2010 3:44 pm at 3:44 pm #1069200blinkyParticipantICOT- the answer to the riddle (in plain english)is:
key- C= Cannibal
W= Whiteman
1C and 1W cross and 1C comes back
2C crosses and 1W comes back
2W crosses and 1C and 1W comes back
2W crosses and 1C comes back
2C crosses and 1C comes back
2C crosses
(the riddle was from before yom tov so here it is again, You have 3 canniballs and 3 whitemen that have to cross a river. They have one boat that can hold 2 ppl.
How is it that they can all get across (don’t forget that s/o has to bring the boat back) but at any time on either side there can’t be more cannibals than whitemen?)
October 4, 2010 5:01 pm at 5:01 pm #1069201I can only tryMemberDr. Pepper–
Correct!
Ben Franklin was on the half-dollar from 1948 thru 1963
In 1964 John F. Kennedy replaced Franklin.
Other circulating coins last had non-presidential men on their obverses as follows:
Nickel – Indian, 1938. Replaced by Jefferson in 1938 (there was an overlap).
blinky–
Your first step – 1C and 1W cross and 1C comes back – leaves three cannibals and two suppers on the original riverbank.
October 4, 2010 5:15 pm at 5:15 pm #1069202Dr. PepperParticipantI can only try
There were some 1964 Peace Dollars minted for circulation in 1965 although they were never actually released for circulation.
October 4, 2010 5:18 pm at 5:18 pm #1069203myfriendMemberDoctor Pepper: Are you a coin collector by any chance?
October 4, 2010 6:38 pm at 6:38 pm #1069204blinkyParticipantHey ICOT you are right (i guess mod 80 had a point when he said u are never wrong)
ill have to figure it out again unless s/o can do it for me here…
October 4, 2010 7:31 pm at 7:31 pm #1069205squeakParticipant1) C & MI cross
2) MI returns
3) C & C cross (now all cannibals are across, and all MI at square 1)
4) C returns
5) MI & MI cross
6) C & MI return
7) MI & MI cross (now all MI are across, and all but 1 C at square 1)
8) The 1 cannibal who is across will make 2 ferry trips to bring his or her companions across one at a time.
My closing comment in my first solution attempt at least was correct.
October 4, 2010 7:59 pm at 7:59 pm #1069206blinkyParticipantSqueak- thanx! The person who gave me this riddle said there are actually 2 ways how to do it, so if youd like you can figure out the 2nd way….
October 4, 2010 9:29 pm at 9:29 pm #1069207squeakParticipantWhy? Do they all want to go back to the other side again?
October 4, 2010 9:45 pm at 9:45 pm #1069208YW Moderator-80Membersqueak you should know the answer
these are the Riddle People who live in Riddle World, a parallel universe to our own.
they have no bechira as they do not come from Adam Harishon
October 4, 2010 11:12 pm at 11:12 pm #1069209Mosh3MemberI would totally love riddles if i had an eyeque under 174, im just too smart for you ppl.
October 4, 2010 11:18 pm at 11:18 pm #1069210YW Moderator-80Memberi know what youre going through, mosh
October 5, 2010 12:28 am at 12:28 am #1069211Dr. PepperParticipantMosh3-
Here’s one for you-
Let’s say you have a table with equal distant parallel lines running the length of the table.
You randomly drop a pencil onto the table.
What are the chances of the pencil hitting a line?
Extra Credit- If the length of the pencil is shorter than the distance between two consecutive lines- what famous constant will you estimate?
(No asking Squeak or I can only try.)
*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*
POST # 150,000!!!!!
*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*
October 5, 2010 12:58 am at 12:58 am #1069212KashaMemberLemme guess Dr. P. You were counting the posts and timed yours to hit the jackpot…
October 6, 2010 12:14 am at 12:14 am #1069213I can only tryMemberDr. Pepper–
True.
I discovered that fact about 10 minutes before you posted it, while confirming the dates on the PCGS site (a casual coin-collector like me needs confirmation).
blinky–
That must be why I mentioned Lady Liberty as being the last non-presidential man on the dime, quarter and dollar coins.
1) You can start with a cannibal and tourist crossing together and the tourist coming back, OR, two cannibals crossing together and one coming back.
2) The last trip back to pick up the remaining cannibal can be made by either a tourist or a cannibal.
October 6, 2010 3:17 pm at 3:17 pm #1069214squeakParticipantHere’s a riddle for you, ICOT.
Why does ICOT always wrap squeak’s handle in quotes?
October 6, 2010 3:58 pm at 3:58 pm #1069215blinkyParticipantWhat is special about these sequence of numbers?
8,5,4,1,9,7,6,10,3,2,0
October 6, 2010 4:03 pm at 4:03 pm #1069216squeakParticipantThey’re in alphabetical order, of course.
October 6, 2010 4:06 pm at 4:06 pm #1069217Dr. PepperParticipantThey are in alphabetical order.
Eight
Five
Four
One
Nine
Seven
Six
Ten
Three
Two
Zero
October 6, 2010 4:25 pm at 4:25 pm #1069218squeakParticipantExcept that the 1 and 9 should be reversed, but I’ll put that down to just a typo 🙂
October 6, 2010 4:26 pm at 4:26 pm #1069219squeakParticipantOh yeah! How does my dust taste, Dr. Pepper?
(Just to be less cruel, I’ll add that I know what yours tastes like.)
October 6, 2010 4:32 pm at 4:32 pm #1069220blinkyParticipantI was contemplating writing that its for more simpler ppl to figure out not for you guys:)
October 6, 2010 4:33 pm at 4:33 pm #1069221I can only tryMembersqueak-
2) Your brilliance is incandescent. We always wrap the handles of hot objects, to avoid burns.
October 6, 2010 4:37 pm at 4:37 pm #1069222blinkyParticipantyou are running in a race and you overtake the person in 2nd place- what position are you in?
p.s. this is NOT for doc or squeak!
October 6, 2010 4:39 pm at 4:39 pm #1069223YW Moderator-80Memberthat person was in second place before, or after, you overtook him?
October 6, 2010 4:41 pm at 4:41 pm #1069224blinkyParticipanti thought you are a prodigy! read it again, i think its pretty simple to understand (i x want to give away the answer!)
October 6, 2010 4:42 pm at 4:42 pm #1069225agentParticipantYou are in Second place Blinky!!
October 6, 2010 4:43 pm at 4:43 pm #1069226squeakParticipantICOT, I’ll go with #1, thanks. Looks like I walked right into your trap 😉
October 6, 2010 4:45 pm at 4:45 pm #1069227YW Moderator-80Memberof course i am a prodigy
your phraseology was minimally rigorous at best
in the future please email me your “riddles” so i may correct the verbiage before you give us prodigies a headache trying to unravel your intent.
October 6, 2010 4:47 pm at 4:47 pm #1069228YW Moderator-80Memberps if you didnt understand my previous post ill put it in “normal” human terms. your riddle was somewhat ambiguous (that means that it lends itself to more than one understanding)
October 6, 2010 4:50 pm at 4:50 pm #1069229pascha bchochmaParticipantRiddle: What is the longest sentence Moderator 80 can compose out of quadrisyllabic words, excluding nouns?
-
AuthorPosts
- You must be logged in to reply to this topic.