As part of the 'Not Quite the Movies Challenge', here is an introduction to matrices.

You may enjoy listening to music, but do you know how it is constructed to sound that way? Recommended for grades: 10,11,12

I couldn't help but wake the neighbours as I bounced on the rusty, squeaky pogo stick of my childhood, but I recently discovered there is much more to the pogo stick than I ever imagined.

This is a survey of interesting facts about one of my favorite actors.

There are a number of words associated with a deck of tarot cards which come to English from other languages. Can you identify the language from which each of the selected terms originates? Source is the Online Etymology Dictionary.

Here is a quiz on perfect numbers and related interesting groups of numbers.

Here are some examples of the kind of clue you may encounter when solving a cryptic crossword puzzle.

Is this popular Christmas carol actually a coded message? Let's find out.

The answer to each question contains the word 'AMEN' along with one or more extra letters. Write the word that is defined in the clue.