Learn how to write secret codes like “junior detective” Matthew Parker.

Can you solve these challenging number puzzles?

Do you remember all those strange arrows from the October 2012 edition of Clubhouse? Here they are again. How It Works: To bust this creepy

Troubled by the tea code in the January issue? Here it is again: How It Works To decipher this code, you must add up the

Greetings and salutations! Have you solved this month’s perplexing puzzle? If you think you have the answer, click on the image below.  

Greetings and salutations! In addition to determining the desired numerical sequences, this month’s puzzle asks you to build equations. Complete the grid so that each

Did February’s coin code make any cents to you? Here it is again: How It Works To decipher this code, first arrange the coins in

Complete the grid so that each row, column and three-by-three box contains the letters CHIRPTONE. (You can’t have any repeated letters in a line or

Could you crack the perplexing pairs in the May code? Here is the secret message again: UH OV TN OR IR YS DO UH BR