Logic Puzzles

16!

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Missed the multiplication…
23!

https://logic.puzzlebaron.com/init.php

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Oh, he’s wearing shoes!
43!

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A French teenager sued a hypermarket this year over one of those riddles the market used as part of a prize competition. His argument was that since the plus sign is already explicitly used, two shoes together cannot mean one shoe plus another shoe.

Did the teenager win?
I would guess not…

:grin:

He did and got awarded 700 euros, the monetary equivalent of the prize. The judge pointed out that the hypermarket never challenged the teenager’s argument.

It was the supermarket’s fault then :idunno:

I guess there is a sort of logic to it. :grin:

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Slitherlink app is a quick and fun logic puzzle thing.

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I would also recommend Puzzle Page


Daily challenges, from Crosswords to Sudoku, from Picture Minesweeper to Kakuro.
I enjoy it a lot!

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39?

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Feeling like I’ve missed something, I’d say 35 since all triangles except 3 & 5 have the sum of the two preceding triangles.

I feel a little like I’ve got a foot on the dock and the other on a rowboat slowly drifting away, though. Odd wording.

eta: whoops. 8 + 13 is 21, not 22. Taking a do over.

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Each number is double the previous number, then subtract the sequence # of the previous number.

(22 * 2) - 5 = 39

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I don’t like these number games, there’s always so many possible solutions, but the person who asks usually only accepts one.

This one, for example, could be:

31:
q-sinh(x) evaluated at q=-x
1, 0, 1, 2, 3, 5, 8, 13, 22, 31, …

35:
a(n) is the greatest integer k such that k/Fibonacci(n) < 2/5
0, 0, 0, 0, 1, 2, 3, 5, 8, 13, 22, 35, …

36:
a(n) = floor(Fibonacci(n)/4)
0, 0, 0, 0, 0, 1, 2, 3, 5, 8, 13, 22, 36, …

37:
Powers of fifth root of 13 rounded up

1, 2, 3, 5, 8, 13, 22, 37, …

38:
Number of partitions of 1 into up to n powers of 1/2
1, 2, 3, 5, 8, 13, 22, 38, …

39:
a(n) = 1 + 2^(n-1) + n for n > 0, a(0) = 2
2, 3, 5, 8, 13, 22, 39, …

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It’s a good puzzle imo, there’s nothing saying you can’t do the sequence numbers on your own and include them in the solution.

It does kinda remind me of this puzzle, although this one kinda takes that kind of trick to the next level.

Oh yeah!
That’s a nice one!