Yes... Visualise that you have 2 trains both departing at the same time, one from either town, running towards each other. They will definitely run into each other at one moment in time through the journey.
This would have been harder to work out but the fuse question before was too similar.
One solution:
Deal out ten cards and then turn the ten card pile upside down.
Edit: Quick explanation:- The number of upside down cards in the remainder of the deck will equal ten less the upside cards dealt into the pile of ten. Hence the right way up cards in the ten pile equals the number of upside down cards in the remaining deck. Hence the need to turn the ten pile upside down.
Deal out ten cards and then turn the ten card pile upside down.
Delightfully simple.
I can't believe I didn't work it work.
...
This is an oldie but still a goody if you don't know it ....... if you have a brain like mine it won't be immediately obvious
I know these are simple, but ........ Welcome to my world
Three friends check into a hotel. They are staying in the same room.
They pay $30 to the manager and go to their room.
The manager suddenly remembers that the room rate is $25 and gives $5 to the bellboy to return to the people.
On the way to the room the bellboy reasons that $5 would be difficult to share among three people so he pockets $2 and gives $1 to each person.
Now each person paid $10 and got back $1.
So they paid $9 each, totalling $27. The bellboy has $2, totalling $29.
Where is the missing $1?
Manager has 25, bellboy has 2, = $27
Each person has $-9, = $-27
Here's a few from a Children book that were surprisingly tricky!
View attachment 62644
First one is a NO - it is called displacement. As long as his finger does not touch the bottom or sides then it will NOT be heavier.
1. First one is indeed Yes. It does weight more - the finger has taken the place of the water and also "fills in" for the weight of the water. But since the water is still there, the glass weights more.
TL;DR - The total volume of finger+water in the glass has increased, thus weight increases.
I'll give an extra clue with 2&3 - pay close attention to the picture. This one ain't abstract
2. It's a 4 ring binder but Bear's paper only has 3 holes.
1. First one is indeed Yes. It does weight more - the finger has taken the place of the water and also "fills in" for the weight of the water. But since the water is still there, the glass weights more.
TL;DR - The total volume of finger+water in the glass has increased, thus weight increases.
I'll give an extra clue with 2&3 - pay close attention to the picture. This one ain't abstract
Love this sort of thing. Haven't posted any responses, because usually when I've had the chance to check someone else has long figured it out.
Just a thought.... not sure if it's a problem for others, but it's hard to open this thread and not be exposed to spoilers (ie. someone else's thoughts or even the answer).
Would it be possible to have two separate threads - one exclusively for the logic puzzles / riddles and another for discussions of the processes and eventual answers? Shouldn't be too hard to cross-reference between the two with the right headings or post references (Tech/A used to do it in his charting threads). I hope that something like this would keep it in the spirit of community collaboration, because it's great to see, especially in the often maligned general chat section of ASF.
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