Listeners whose answers are selected win a chance to play the on-air puzzle. Important: include a phone number where we can reach you.

But here's the catch — the middle pentagon is missing a number in the bottom right corner. Can you figure out how all of the numbers are related and fill in the missing one? Here's the puzzle ...

Play the New York Post’s daily hard-level Sudoku puzzle online. See if you can fill in each square with a number 1-9, without repeating any number within each column or row. You can also play ...

Get started solving the classic number puzzle with tips from some of the best ... for a total of 81. The goal is to fill in each of the cells with a number from one through nine.

and block has exactly one of each number. The puzzle starts off with some of the squares already filled in with particular numbers, and it's up to the solver to figure out how to fill in the rest ...

with one missing digit that you need to fill in. The puzzle you are trying to solve goes as follows: 363 + 1?7 = 560. Can you guess the missing number here that is represented by the question mark?

Sunday Puzzle: Fill in the blank with these 'EE' and 'OO ... Important: include a phone number where we can reach you. AYESHA RASCOE, HOST: ...

After having created number puzzles like Calcudoku and Killer Sudoku ... well as lesser known ones such as the Bongard Problem and Fill-a-Pix. Some of these puzzles can be solved right on this ...