17
votes
Accepted
17
votes
Accepted
14
votes
Accepted
13
votes
Accepted
Missing photograph
The missing photograph is one of:
To work this out, first identify the pictured people. These are all:
This means we need to identify...
This would be:
- 133k
12
votes
Accepted
The invisible O
I think
because
Thus in the first grid
and in the second
and in the third
the fourth
the fifth
giving
Or, visually:
- 5,293
11
votes
Accepted
Decipher this sentence, written in an original cipher
Plaintext
Solve path
Step 1: Identify repetitions.
Step 2: Ponder the cipher.
Step 3: Assume a few words.
Step 4: Assume a few more words.
Step 5: Assume a long pattern word, and recognize the ...
- 3,417
10
votes
Accepted
Chemistry Puzzle
The answer is
The letters on the left are
The compounds on the right are
Now
And so
- 56.4k
9
votes
Accepted
What weight is it?
After reading all the comments and hints, my guess is to replace the question mark with the flag of:
My assumption to arrive at this answer was:
That will be:
As pointed out by others:
Also:
...
- 5,637
9
votes
Accepted
8
votes
Accepted
7
votes
Accepted
Escape from a Grand Canyon
Overall Solution
The Pig Latin clue tells us we have 12 digits and also gives us 4 more instructions:
Let's tap those colour keys in the order we can see in the spoiler above. We get:
Partial ...
- 4,573
6
votes
Accepted
Rotational Symmetry on Digital Clock
I agree with the supplied answer of
The answer calculated in the question is off by
So, I'm forced to pick between the person asking this question and Will Shortz, who has proven to me, at least, to ...
- 7,540
5
votes
Accepted
Title of this puzzle? You tell me
The puzzle is named
because
Thus the numbers
ETA: as noted in the comments by the setter
- 5,293
5
votes
Accepted
A fun and simple Nonogram... ...with a cipher
Even though it wasn't part of the original question, in the comments OP gave out this invaluable nugget of information:
Since the nonogram was definitely difficult enough to warrant such trickery, ...
- 75.6k
4
votes
A puzzle about circles
Not sure if this is the intended interpretation and whether it is complete or if there is more behind it:
So, maybe somebody can give a clearer picture.
Maybe...
The magenta colored cells:
In ...
- 1,589
4
votes
Accepted
Name, Place, Animal, Thing
The famous South African should be
The name of the two first people
Now for the "thing" which is suppose to be represented by a famous South African
Here is an image:
- 29.4k
3
votes
Accepted
Nimber Mnemonics
Multiplication of nimbers between $1$ and $15$ (or between $0$ and $2^{2^n}-1$ for any $n$) has a primitive root: a number whose powers generate all the nimbers we want. (In fact, I believe that $2^{2^...
- 1,769
3
votes
Accepted
A Hidato, but with no given numbers? #2: 5x5
First we solve the nonogram
There are
Then we see that only one of the
Then the two
Since the yellow
Now the yellow
Finally the red
- 18.1k
3
votes
Accepted
A Hokuro, but with a twist!
Solved nonogram (black denotes filled cells, grey denotes empty ones):
Hokuro with colourings included (grey denotes "black" cells this time, white denotes empty ones):
Filling in single ...
- 116k
3
votes
As short as possible
My best visual representation would look like this:
My verbal description (bear with me) would be something like:
- 462
2
votes
Accepted
2
votes
Accepted
SEVEN-COUNTERS GAME
In my representation, unoccupied points are represented by letters and occupied points are represented by counters (numbers):
A B
H C
G D
F E
Step ...
- 280
1
vote
What weight is it?
This is only a partial answer.
My first idea is:
My second thought is:
The ideas above are a bit shaky, so I could be way off track.
- 76
Only top scored, non community-wiki answers of a minimum length are eligible