Which number must be inserted in place of the incorrect number? Show puzzle solution The number 75 must be replaced by the ...

This square is divided into 36 smaller squares. There are 91 squares in total. Because the big square has a side length of 6, there are six different square sizes ...

Well, get ready to put your skills to the ultimate test with the world’s hardest maze!In a chat with Julie E. Bounford, PhD, ...

Math teacher Ben Orlin writes and draws the (aptly named) blog Math With Drawings and is the author of a new book, Math for ...

And here's your second win of the weekend. The answer to the September 15 (1184) Wordle is RECUR. By submitting your ...

The National Park Service is over 100 years old! How many of our beautiful national parks have you been to? Enjoy free ...

My colleague Zach Hansen reports this morning that the maker of tissues, toilet paper and a whole heap of other stuff plans a massive remodel of its iconic Atlanta office tower — one that includes the ...

Educators are conscious of the value of exposing students to great works of poetry, but the teaching of poetry often lacks a ...

There are just some mathematical challenges with nailing the soft landing that we're not really sure have been met yet. We ...