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Coffee puzzle leaves Twitter totally stumped – which cup would be filled up first?
Daily Mail ^ | 10 November 2017 | Bianca London

Posted on 11/11/2017 4:44:14 AM PST by mairdie

Brainteaser shows a funnel of coffee being poured into different pipes

Poster asked her followers to guess which cup received coffee first

People were left stumped by the confusing brainteaser on social media

(Excerpt) Read more at dailymail.co.uk ...


TOPICS: Humor; Miscellaneous
KEYWORDS: brainteaser; game
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To: mairdie

Oops, 4 is blocked


141 posted on 11/11/2017 6:41:50 AM PST by Lady Heron
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To: William of Barsoom

“Number 5. In fact, it’s the only cup that will fill at all.
All the others are blocked.”

William of the Bar. You are CORRECT.


142 posted on 11/11/2017 6:42:52 AM PST by Rannug (When you're dead, you're dead. Until then fight with everything you have.)
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To: mairdie

I got it wrong, because like so many puzzles, our minds move too quickly and make assumptions which do not exist - and do not look at very small, but important details. In this case, with the pathways leading to each cup.


143 posted on 11/11/2017 6:43:44 AM PST by PGR88
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To: mairdie

The width of the pipes have nothing to do with the correct answer.


144 posted on 11/11/2017 6:44:03 AM PST by Rannug (When you're dead, you're dead. Until then fight with everything you have.)
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To: MD Expat in PA; xsmommy; tioga; secret garden; SoothingDave

It will, in the physical world depend on the diameter of the two tubes at the right angle, and the speed the coffee is poured. Pour slow enough, with all the joints clean and at right angles (so the there is an air path out of the lower lower tube), and the coffee will flow as described.

Pour it quick enough, and it will trap air and stall out. But the trapped air will bubble through the trapping tubes eventually, if the tubes are big enough not to trap the bubbles with a meniscus effect.


145 posted on 11/11/2017 6:46:42 AM PST by Robert A Cook PE (I can only donate monthly, but socialists' ABBCNNBCBS continue to lie every day!)
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To: mewzilla

Yes, far as I can see it’s gotta be #4. ##9 and 7 have plugs; both boxes from which #5 would be filled have to be filled to the top, leaving #4 as the quickest to fill.


146 posted on 11/11/2017 6:49:18 AM PST by EDINVA
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To: exDemMom

You need to be a little more obvious ma’am.


147 posted on 11/11/2017 6:49:48 AM PST by Rannug (When you're dead, you're dead. Until then fight with everything you have.)
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To: SunkenCiv

As I think about it, why do they do Friday dump? There is no need as the Repubs would never do anything about any of it. Dump it on Monday morn and watch the Repubs cower all week.


148 posted on 11/11/2017 6:51:49 AM PST by taterjay
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To: mairdie

Too easy!!! #9


149 posted on 11/11/2017 6:53:08 AM PST by 2nd amendment mama (Self Defense is a Basic Human Right!)
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To: Mercat

You are correct!!! Duh!


150 posted on 11/11/2017 6:54:11 AM PST by 2nd amendment mama (Self Defense is a Basic Human Right!)
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To: radmanptn

“Stupid is as stupid does.”


151 posted on 11/11/2017 6:55:31 AM PST by Rannug (When you're dead, you're dead. Until then fight with everything you have.)
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To: exDemMom

#9 is blocked


152 posted on 11/11/2017 6:57:15 AM PST by NorthstarMom
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To: Alberta's Child
Seems clear that it's #9, unless I'm missing something...This is actually similar to a problem I had on my P.E. exam some years ago. LOL.

You are missing something. The outlet into #9 is also blocked.

The only cup without a blocked path for the coffee is #5, which has to be the the correct answer -- did you get the question right on the P.E. exam?

153 posted on 11/11/2017 6:57:26 AM PST by CurlyDave
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To: mairdie

If this is considered a brain teaser the world is doomed.


154 posted on 11/11/2017 6:59:09 AM PST by Vision (If you can't respect the Anthem, then it's time for you to find another home.)
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To: MD Expat in PA

Just a retired ODOT employee here. I had a rather cozy job until one of those Asian people invented a shovel that stood up by itself. #5


155 posted on 11/11/2017 7:05:16 AM PST by Rannug (When you're dead, you're dead. Until then fight with everything you have.)
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To: SkyDancer

Oops. You’re right.


156 posted on 11/11/2017 7:06:20 AM PST by SargeK
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To: CurlyDave

Thanks. I noticed that shortly after my post. I don’t know if I got the right answer on the exam. I passed the exam, so it wasn’t all that important to know. LOL.


157 posted on 11/11/2017 7:06:50 AM PST by Alberta's Child ("Tell them to stand!" -- President Trump, 9/23/2017)
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To: William of Barsoom

Ding Ding Ding, we have a winner!


158 posted on 11/11/2017 7:12:20 AM PST by ops33 (SMSgt, USAF, Retired)
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To: exDemMom

9 is blocked


159 posted on 11/11/2017 7:13:13 AM PST by ops33 (SMSgt, USAF, Retired)
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To: Wiser now

“4,7, and 9 are all blocked. Five is open, but is there enough coffee in the pitcher to fill up both blocks before it overflows into the coffee cup? I don’t think so.”

You are attaching conditions which are not stipulated in the problem.


160 posted on 11/11/2017 7:14:05 AM PST by Rannug (When you're dead, you're dead. Until then fight with everything you have.)
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