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8 votes
Accepted

The Old Brazen Head

We can do it with 1 question asked twice at most.
  • 984
18 votes
Accepted

Pi is a perfect square!

Your students should probably brush up on their So let's clear things up, shall we? Why is pi a perfect square? Why is four not a perfect square? What's going on with the number theory? "That ...
  • 16.1k
13 votes
Accepted

Reconstruct the lost labyrinth of Knossos

Final maze! Logic: Reconstruction Venturing into the maze Getting lost Making connections Middle man Cracking the code Finishing the maze! And from here, it's fairly simple to trace out the ...
24 votes
Accepted

A 1-D labyrinth

I think that the easiest way to solve this 1-D maze is to think of it as This allows you to visualize it as follows: In text form a solution is:
3 votes
Accepted

Dark time in prison

  • 5,574
0 votes

Dark time in prison

Assumptions: Brightness depends on number of segments lit, regardless of which ones. (More = brighter, fewer = dimmer, same number = same brightness.) The clock display is accurate at all times, but ...
  • 1,021
15 votes
Accepted

Sergeant Sequence faces his toughest (IQ) test yet

The country Lando is looking for is: First, we solve each of the 8 subpuzzles. Puzzle 1 Puzzle 2 Puzzle 3 Puzzle 4 Puzzle 5 Puzzle 6 Puzzle 7 Puzzle 8 Metapuzzle These are all... We can ...
  • 1,899
38 votes
Accepted

The Oracle's IQ Test

You are... Because...
  • 548

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