Let's construct a 10x10 grid. 0n the 100 squares you are allowed to place 7 bases (the red dots in the diagram below) in any square on the grid. Then you fill the grid with skinny trominoes. The trominoes have to cover all the squares except the squares which contain a base. Next, construct a con...

Can someone help me? I was trying to make a liar puzzle. This is what it looked like in the preview thing in the edit mode, Then, this is what it looked like in question. Is that me, or its just the program?

You are in a room, with 6 people. 2 of them are liars. The room has a code pad. The people say: People What they say Keith The first and last digit are the same number and are not used anywhere else in the code. The numbers in question are prime numbers. Sabrina The code does not includ...

I have a solution for the world toughest sudoko which is solved in 0n seconds: " I know everyone can code to solve sudoko."

My friend let me have a go of his cube and neither of us know what its called or where to buy one.

This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles. All the Salon Words below have a feature in common with them that none of the Not Salon Words have. Can you figure out what that special feature is? Salon Words Not S...

What is the 6-letter word that associates with this rebus? Helpness Meter 1: Helpness Meter 2:

[![enter image description here][1]][1] Found this puzzle on Quora from Christian Baune and here is the link https://qr.ae/pGXQPa [1]: https://i.sstatic.net/KY8s8.jpg

Suppose that you take a pen and mark five points on a ball. I claim that no matter where you draw those points, I can always slice the ball into two equal halves (too equal hemispheres) such that one of the halves contain exactly four of those points. Is my claim true?

I got sent this from a year ago, and I am still thinking what was the secret number that they hid a secret from, so here are the pictures. The first one was a car, and a random equation. The next one looks like a moon from Mars, with a random red circle. The person that messaged these from me sa...

This puzzle is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles. If a word goes to a special rule, I call it a Filipino™ word. Here is a list of Filipino™ and not-Filipino™ words: Filipino™ Words Non-Filipino™ Words maul...

Sort of a trick question. But also not quite a trick question. This is a PERSON, not a dog or chimpanzee or other animal.

What is a Fun Puzzle? I was curious to learn what makes a puzzle Fun so that I could devote my time to only working on Fun Puzzles. With that goal in mind, I set out to make a list of Fun and Not Fun puzzles. I knew this would be a contentious topic with many opinions, so I took an informal poll ...

Do you have what it takes to compete in the famous Vega Classic? Looking for skilled navigators. Apply below. You have a craft that is capable of 10m/s$^2$ acceleration in any direction, and we're looking for the fasted time from Vega Starship 1 to Vega Starship 2 around the beacon. The rules of...