You are probably familiar with the word game Boggle, where you need to form words from letters on a grid. Here we will play a numerical version of the game. The rules are as follows: Create a 6x6 grid of digits. Each cell must contain a single digit from 0 to 9. Starting in one cell you collect ...

So I have a younger cousin who's been hanging out with a group of other teens recently. Unfortunately, my cousin is at the stage where they don't want to talk about their friends to their parents, so my aunt is freaking out that the group's all into drugs, or gang wars, or drug-fueled gang wars....

When I start to teach probabilities, I challenge my students with the following: Thelma is 16 years old and can only go out at night if one of her parents gives her permission. She knows her father is less tough then her mother (he let's her go out more often). She also knows that if she asks ...

I never thought I'd be able to make a connect Fano plane out of chemical elements, since there are so few to choose from. And I was right, but I got really close. So if you haven't seen previous connect Fano planes, they are very much like a connect wall, except you are given seven words (element...

This is a letters-latent cryptic crossword: an equal number of Across and Down clues have one extra letter in the wordplay that should be removed and noted down. These letters spell out a phrase which, interpreted correctly, indicate four words that the solver should find and highlight in the f...

Here is the puzzle: N logicians wear N hats, each hat color is selected randomly: black or white. As usual, every logician doesn't see the hat on his own head, but sees the rest. Each logician at the same moment must answer the question - "what color is the hat on your head?". And there are only ...

While completelely factorizing integers, my student Luciana noticed that the canonical prime factorization of the three consecutive numbers 81=3^4, 82=2x41, and 83=83, use numbers which are all different: 2,3,4,41, and 83. She would like to know the largest possible triplet of such numbers. I tol...

Here's another variety crossword type: Marching Bands Rules Words march across each line. Each line has 2 words of variable length. The two words will fill up the whole line. Line 6's words are 5 letters each - they don't go through the black box. Words circle in each band. Each band's words ...

Can you convert the following to my unusual currency? 1.25, 1.75, 2.75, 3.25 Okay, so you've done that. But now can you explain why some people think the smallest is somehow the biggest - at least as far I'm concerned. After all, the odd result wasn't entirely of my making! Anyway, it provided m...