# mes.fm > AI-optimized mirror of mes.fm containing 23 pages totalling 4,282 words of clean markdown content, structured data, and semantic HTML. Original source: https://mes.fm/. Last updated: 2026-06-16T04:15:49.025Z. Each page is available as HTML (with JSON-LD structured data) and Markdown (text-only, ideal for LLMs and RAG). ## Homepage - [Math Easy Solutions](/content/site-root.html): Math Easy Solutions: The one stop for video tutorials, funny math memes, useful calculators and all things math. (213 words) ## Articles & Blog Posts - [Missing Square Puzzle](/content/puzzles/missing-square-puzzle/index.html): When you rearrange the pieces in this triangle, you get the missing square. Can you figure out why? (85 words) - [Missing Cards Riddle](/content/puzzles/missing-cards-riddle/index.html): This is a good riddle to test your card dealing skills. Do you know how many cards are missing?

For reference, I have included the riddle text below as well:

A small number of cards has been lost from a complete 52-card pack.

If I deal among 4 people, 3 cards remain.
If I deal among 3 people, 2 cards remain.
If I deal among 5 people, 2 cards remain.

How many cards are there? (142 words) - [Memes](/content/memes/index.html): Check out Math Easy Solutions' Memes! (60 words) - [Can you solve for the Triangle?](/content/puzzles/can-you-solve-for-the-triangle/index.html): This is another fun and challenging math puzzle, which is a simple system of equations made up of the shapes instead of numbers. The shapes include a circle, square, and triangle, in which you are asked to solve for the value of the triangle. This is good and quick math puzzle to challenge your brain, so try to solve it for yourself before checking the solution! (151 words) - [Privacy Policy](/content/privacy-policy/index.html): Math Easy Solutions: The one stop for video tutorials, funny math memes, useful calculators and all things math. (1,127 words) - [Einstein's Riddle](/content/puzzles/einsteins-riddle/index.html): A rare fish has been stolen from an aquarium. The police have traced the fish to a street with 5 houses. They can't search all at once and if they search one, the thief will know they are on his trail and run away. The police hire you as a detective to solve the case.

The police give you the following information:

Each house owner is a different nationality: German, Dane, Norwegian, Swede, and Brit.
Each house owner drinks a different beverage: milk, tea, coffee, water, and root beer.
Each house owner smokes a different type of cigar: Dunhill, Blends, Pall Mall, Prince, and Blue Master.
Each house interior walls are painted a different color: yellow, red, white, green, and blue.
Each house contains a different animal: cat, horse, bird, dog, and fish.

You are able to gather the following list of clues:

1. The Brit lives in the house with red walls.
2. The Swede has a dog.
3. The Dane drinks tea.
4. The house with green walls is directly to the left of the house with white walls.
5. The owner of the house with green walls drinks coffee.
6. The person who smokes Pall Mall cigars owns a bird.
7. The owner of the house with yellow walls smokes Dunhill cigars.
8. The man living in the center house drinks milk.
9. The Norwegian lives in the first house.
10. The man who smokes Blends lives next to the cat owner.
11. The horse's owner lives next to the man who smokes Dunhill.
12. The man who smokes Blue Master drinks root beer.
13. The German smokes Prince.
14. The Norwegian lives next to the house with blue walls.
15. The man who smokes Blends has a next-door neighbor who drinks water.

Now it is up to you to solve for the house with the fish!

HINT: Make a 5x5 table with house number vs house information to help organize your investigation. (393 words) - [Can You Solve for n?](/content/puzzles/can-you-solve-for-n/index.html): This is a good puzzle to test your pattern recognition and algebra skills. Can you solve for n?

Hint: Try to get it in the form of a quadratic equation. (99 words) - [System of Equations Puzzle](/content/puzzles/system-of-equations-puzzle/index.html): Can you solve this system of 4 different equations? There are 4 unknowns and you can solve these by first writing 4 different equation. This is a very interesting puzzle, and you can solve this in your head if you can, or you may have to write this down and solve it that way.

NOTE: The subtraction symbol is ONLY used in the horizontal equations, but in the vertical equations, don't include it as a negative sign. (200 words) - [Round3 MES / Psyducker Puzzle](/content/puzzles/round3-mes-psyducker-puzzle/index.html): If you haven't been following me on Twitter @matheasysolns, then you may have missed out on #Round1 and #Round2 puzzles as part of the #Tengri137 alien math break-dance puzzle battle!

Anyways, for #Round3, and through the help from @psyducker8 whom came up with the idea, the puzzle is shown below!

Can you solve what it means?? #CommentBelowYourAnswers (126 words) - [Support Math Easy Solutions!](/content/donate/index.html): Help keep MES running and providing breakthrough research by donating! (156 words) - [The Magical Number Nine](/content/puzzles/the-magical-number-nine/index.html): The number 9 is very special, and this brain teaser shows just why!

It doesn't matter which whole number with two or more digits you take, when you subtract it by the sum of its digits, and keep repeating you will ALWAYS end up with the number NINE!

Try to find out why for yourself before looking at the solution! (169 words) - [Mobile Apps](/content/mobile-apps/index.html): Check out the mobile apps by Math Easy Solutions (168 words) - [Connect the Dots Puzzle](/content/puzzles/connect-the-dots-puzzle/index.html): This is a very interesting puzzle. Can you solve it? The puzzle asks to draw 4 straight and continuous lines that connect all the 9 dots. In other words, draw 4 straight lines without lifting your pen. If you get stuck, here is a hint for you "Think Outside the Box" ;) (120 words) - [Missing Dollar Puzzle](/content/puzzles/missing-dollar-puzzle/index.html): Can you figure out what happened to the missing dollar?

For reference, I have included the text of the puzzle below as well as in the image.

Three people go to a hotel to stay the night, they ask how much to the person at the desk. The person at the desk says $10 each ($30). They hand over $10 each ($30) and go to the room. The person at the desk thinks they charged too much so they give the bellhop five $1 bills ($5) to give to the three people. On the way, the bellhop puts $2 in their pocket. The bellhop gives the people $3 back. Now they each paid $9 each not $10. Simple arithmetic, 3X9=27. The Bellhop kept $2, so 27+2=29.

What happened to the other dollar? (199 words) - [What is the height of the table?](/content/puzzles/what-is-the-height-of-the-table/index.html): The difference between the height of a cat on a table and a turtle on the ground is 170 cm. But the difference is 130 cm if the turtle is on the table and the cat is on the ground. How tall is the table?

Bonus: Can you determine the heights of the cat and turtle from this information alone? (129 words) - [Calculators](/content/calculators/index.html): Check out the many useful online calculators brought to you by Math Easy Solutions! (188 words) - [Find the Hidden 8](/content/puzzles/find-the-hidden-8/index.html): How fast can you find the hidden 8? (110 words) - [Partners](/content/partners/index.html): Check out the partners of Math Easy Solutions (64 words) - [Tools](/content/tools/index.html): Check out the useful online tools brought to you by Math Easy Solutions! (106 words) - [Hardest Easy Geometry Problem](/content/puzzles/hardest-easy-geometry-problem/index.html): Can you solve for x?

HINT: If you try to solve it using basic elementary methods, you will be stuck for a while. Try adding an extra isosceles triangle... (97 words) - [How Many Dots Can You Spot?](/content/puzzles/how-many-dots-can-you-spot/index.html): This is an amazing photo and example of just how your eyes and brain work! First try to count how many little black dots you can spot, before going to the solution, in which I explain the science behind it! (120 words) - [MES Puzzles](/content/puzzles/index.html): Check out Math Easy Solutions' Puzzles and Riddles! (60 words) ## Resources - [Full Page Index](/index.html): Browse all cached pages with rich metadata - [About This Cache](/content/about.html): Methodology, technical details, and usage guidelines - [XML Sitemap](/sitemap.xml): Machine-readable sitemap for crawler discovery - [Robots.txt](/robots.txt): Crawler directives