9 votes
Accepted

Find the Two Item Amounts

The correct amounts are Starting from the right: Continuing left: Third from the right: The second column: Leading digit: Using rule 3 to get the final amounts: So the final sum is
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8 votes
Accepted

The alien quantum-tunnelling hyperking labyrinth escape

The answer: Note on the existence of the main loop:
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  • 6,977
6 votes

Mega-puzzle of many number puzzles: Nikoli Octathlon

This has been a puzzle on my own 'hit list' for several years, but I had never made much progress. Thanks for posting it here, as I have now taken the plunge good and proper, and finally (after ...
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  • 98.1k
4 votes

Find the 3 Item Amounts

Starting in the hundredths place (the rightmost column): Moving to the tenths place: Moving to the ones place: Moving to the tens place: Now focusing on the number of lines added: So the solution ...
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3 votes
Accepted

Flipping through the faces of a cube?

This can be done in Since this puzzle The most straightforward flips are But @Penguino has found a series of flips that
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  • 7,189
3 votes
Accepted

Sum Like It Simple

Mark the numbers like this: a c b d e f g
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  • 6,977
2 votes

Constraint Satisfaction Problem: who killed Warren White?

I've never seen Jerry before Billy lied when he said he had never seen Jerry before Billy didn't kill anyone I didn't do it I didn't do it I've never seen Jerry before It's true, that I know ...
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  • 12.8k
2 votes

Logical Connectives but 5 statements instead of 3

[EDITED to add:] Since I posted this InanimateBeing has edited the question in a way that makes parts of it no longer make much sense. What's now in InanimateBeing's question is what was originally Q2,...
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2 votes

Logical Connection Problems: which sets of statements are logically consistent?

For Q1: For Q2: For Q3:
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  • 6,924
2 votes

The alien quantum-tunnelling hyperking labyrinth escape

As a warm-up, can you find the path the hyperking can take from the upper left corner to reach another corner?
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  • 6,924
2 votes
Accepted

The Truth And Lies Today

First note that What are the chances that he lies the whole evening? What are the chances that none of these statements were spoken in the morning? What are the chances that he tells at most one ...
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  • 6,924
1 vote

Square Sitting Arrangement

Here is the seating arrangement: The explanation:
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  • 6,924
1 vote

Pipes and Tanks' Network

Maybe this is a more clean analysis to build upon: Now we must revisit condition 2. The flow (in units) of each of the pipelines connected to any tank is different except for the pipeline connecting ...
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  • 1,651
1 vote

Pipes and Tanks' Network

Given the conditions (assuming tank capacity is unique, which is not actually specified, now that I go back and look), the only tank capacities available totalling 17 are 1, 2, 3, 4, 7 and 1, 2, 3, 5, ...
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  • 111
1 vote
Accepted

My Fill-the-circles puzzles (Set #3)

These both seem pretty straightforward to solve. Solution for puzzle 1: Solution for puzzle 2:
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  • 6,924
1 vote

Which day of the week is today (Tuesday, Wednesday, Saturday or Sunday) if one of the statements is false?

Today is Today is neither Sunday nor Wednesday. Tomorrow is not Sunday or Wednesday. Yesterday was not Friday. Monday was not the day before yesterday, neither was Sunday.
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  • 1,008
1 vote

Which day of the week is today (Tuesday, Wednesday, Saturday or Sunday) if one of the statements is false?

Today is Today is neither Sunday nor Wednesday. Tomorrow is not Sunday or Wednesday. Yesterday was not Friday Monday was not the day before yesterday, neither was Sunday.
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  • 7,189
1 vote

Find the Two Item Amounts

Starting from the right: Next space: Next: Next: Finally: That leaves the final solution as:
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1 vote

Constraint Satisfaction Problem: who killed Warren White?

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1 vote

Constraint Satisfaction Problem: who killed Warren White?

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  • 2,121
1 vote

Constraint Satisfaction Problem: who killed Warren White?

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