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xnor
  • Member for 7 years, 6 months
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6 votes
5 answers
733 views

Every tournament has a dominant player

8 votes
6 answers
3k views

Partition a cube into 6 congruent tetrahedra

12 votes
6 answers
666 views

Flipping a randomly-lopsided coin

45 votes
2 answers
5k views

Ten numbers on a blackboard

9 votes
1 answer
366 views

Riddle double-dactyl: Hollywood-Shmollywood

27 votes
19 answers
8k views

Ant walking on a number line

16 votes
1 answer
722 views

Alphabetize by the *zeroth* letter

5 votes
0 answers
146 views

Compare two numbers by looking at one [duplicate]

8 votes
4 answers
367 views

Rectangles with a whole-number measurement

21 votes
1 answer
3k views

Riddle: Who wrote this doctoral thesis?

3 votes
2 answers
288 views

Find seven points so any three contain two of distance one

7 votes
2 answers
573 views

Balancing all but one weight

12 votes
2 answers
1k views

Hidden planet area

13 votes
4 answers
2k views

Picking a time to bet

13 votes
1 answer
608 views

Riddle quatrain: A paper pound of wrong and round

18 votes
1 answer
859 views

Split: A puzzle-hunt style word puzzle

17 votes
2 answers
2k views

Rolling Dice puzzle

13 votes
2 answers
7k views

Connect four towers by roads

12 votes
3 answers
3k views

Tic-tac-toe 1000 in a row