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8 votes

The Old Brazen Head

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

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

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

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

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

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

The Oracle's IQ Test

You are... Because...
  • 548

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