32 questions linked to/from A Masterpiece: A mirror or an ABC?
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### Smallest Unicode Box Drawing

What is the smallest box diagram you can draw which uses all of the Unicode box drawing characters at least once, but without leaving any loose ends? For reference, you must use each of these ...
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### I am described by temperature, and never by looks. I might be found in your camera, as well as children's books

Riddle me this: I am described by temperature, and never by looks. I might be found in your camera, as well as children's books. I described what you observed, but perhaps not at ...
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### What is designed to go into holes and always has a hole in it? [closed]

What is designed to go into holes and always has a hole in it? It fits this pattern: S _ _ ...
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### Who won the world cup quarter-finals?

I hope this is OK to post as after one occurrence of below last year this has been noted in the media - but I haven't seen it written as a puzzle and think it is nice enough to ask. Mia was watching ...
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### Grandpa and numbers: Another Grandpa Mystery

Grandpa loves to make silly little statements. And he thinks they are riddles. The other day he turned to me and said: "This is not math but Take a number Add a number to it And ...
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### 4 Gridded Prime Numbers

You have the first four prime numbers ($2$,$3$,$5$ and $7$) which are gridded and shown as below: You are trying to get highest total score you can reach with arranging the numbers by rotating (no ...
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### Treasure hunt 'round the world! (clue 4)

If you're interested in starting the treasure hunt from the very beginning, check out the prologue! After cracking the code, you catch a flight to Oslo, the capital of Norway. Being on a long flight ...
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### An Odd New Technology

Since it's Friday, and I'm really looking forward to the weekend, I've created yet another riddle for everyone to try and solve. The Puzzle I was in my chemistry class the other day, and I noticed ...
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### Piece de Resistance - Introduction & Ace and A's

OP's Words This puzzle is part of the "Piece de Resistance" series. Read the following section for the storyAce Two Three Four Five ... Hey guys (and gals), I have worked on this for weeks, took me ...
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### What is missing from this sequence of words?

What is missing from this sequence? SUM, SUN, SIX, -, SIP Source: GCHQ Puzzle book
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### Cryptic Poem: a study in what?

One day, while you work through one of your countless puzzle books, you notice that a sheet of paper has been slipped inside with a curious little poem written on it. A Study An ancient man ...
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### Mixing business and pleasure

I asked my manager if it was okay for my friends to come hang around at the shop. Here's his answer: As I've said, they're always very welcome. But can I just remind that we'll keep working? ...
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### Building a pyramid from di-spheres

Suppose you want to build a square pyramid made up of 30 spheres. So the bottom layer is a 4x4 square arrangement of touching spheres, and it has 3x3, 2x2 and 1x1 layers on top. The building blocks ...