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May
19
May 19
Pangrams and Autograms
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Language
May
18
May 18
The Most Popular Birthdays
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Statistics
May
17
May 17
Nephroid Caustics
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Mathematics
May
16
May 16
Acronyms and Initialisms
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Language
May
15
May 15
Press Your Luck
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Oddities
,
Game Theory
May
12
May 12
Square's Strategy
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Game Theory
May
11
May 11
The Pioneer Plaque
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Design
,
Astronomy
May
10
May 10
Sidisi + Embalmer's Tools
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MTG
,
Mathematics
,
Statistics
May
9
May 9
SCP
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The Internet
,
Oddities
May
8
May 8
The Banker's Puzzle
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Puzzles
,
Dudeney
May
5
May 5
Caterpillar Tracks
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Mathematics
,
Oddities
May
4
May 4
Game Design Maths Problem
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Mathematics
,
Game Theory
May
3
May 3
Hanging a Picture Puzzle
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Puzzles
May
2
May 2
Lock Gates
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Mechanics
,
Design
Apr
28
Apr 28
Ring on a String
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Topology
,
Knot Theory
Apr
27
Apr 27
A Topology Problem
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Topology
Apr
26
Apr 26
The Collatz Conjecture
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Mathematics
Apr
25
Apr 25
Are you sure?
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Mathematics
,
Puzzles
Apr
21
Apr 21
Strange Capital Cities
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Geography
,
Oddities
Apr
20
Apr 20
IMDB Scores Challenge
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Puzzles
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