Tags » Logic Puzzles

November 2015 Puzzles Hints

  • A Signature Puzzle: Trying to solve the puzzle with Extreme Speed can’t hurt.
  • Anticron: This puzzle runs on two distinct 24-hour clocks, which is why you can be zoned out for half the time and still solve it.
  • 91 more words

Three for the Price of One (Meta)

And that’s another year!

As usual, you can check your answers here. Text above this horizontal rule is not part of the puzzle.


  1. Yoshiap @ 11-20 13:31:56

Logic Puzzle : 0 = 1

I know math seems perfect, it does have its “problems”. Today I will show you a case where things get weird.

For this to make sense I will explain the associative law, it says that you can put brackets anywhere in a sum without effecting the answer. 157 more words

Math & Science

Everyday Geek Questions

What happens once in a minute, twice in a week and once in a year?

I will be X years old in year X2. How old am I? 15 more words


Puzzle #120: The Efficient Electrician

This is a gem of a puzzle – read it this morning in the book Mathematical Puzzles and Diversions by Martin Gardner. I have had many of the Martin Gardner books for ages now, but overtime I open these books, I continue to find hidden treasures there! 233 more words

Alok Goyal

ColorSlide Puzzles

Part of the fun of writing a math blog is designing new puzzles.  I wanted to come up with a puzzle which incorporated color and logic, so here’s the result! 812 more words

Creating Puzzles