The Master Theorem

In case you have never heard about “the secret society of puzzle solvers” at The Master Theorem, then get ready to face about 50 of the most creative, challenging and original puzzles you can find on the web. Even though the website rarely has been updated in the last few years, it can offer tens of hours of problem solving to all newcomers. In order to sign up and explore everything TMT has to offer, you must first complete one of the numerous puzzles posted there. An easy one you can start with is “Old McDonald”, which can be solved using this… SPOILER.

Geography Jokes

Who says science jokes are not funny? Below you can see some of the best Geography jokes we know, along with short explanations to the more obscure of them.

Do you know any funny Geography jokes yourself? Let us know in the comment section below.


“How did the geography student drown?”
“His grades were below C-level.”

Explanation
Grades in some countries are marked with letters – A, B, C, etc. “C-level” is a word play with “sea level”.


“Where do all pencils come from?”
“Pennsylvania.”

Explanation
Transylvania in Romania is supposedly the place where all vampires come from.


A giant destroyed 3 countries the other day. He picked up Turkey, dipped it in Greece, and then fried it in Japan.

Explanation
The joke sounds like “A giant destroyed 3 countries the other day. He picked up a turkey, dipped it in grease, and then fried it in a pan.”


“What is smarter – longitude or latitude?”
“Longitude – it has 360 degrees.”

Explanation
Latitude has 180 degrees in total, longitude has 360.


“Why do paper maps never win poker tournaments?”
“Because they always fold.”

Explanation
In poker folding is forfeiting the current hand.


“What do fish and maps have in common?”
“They both have scales.”


“What is round on the ends and high in the middle?”
“Ohio.”

Explanation
O-hi-o is a state in the US.


“Where is it 90 degrees, but it is never hot?”
“The North and the South pole.”

Explanation
The North and South poles are located on +90 and -90 degrees latitude.


“What did Delaware?”
“A New Jersey.”

Explanation
Delaware and New Jersey are US states. The joke sounds like “What Dela wear? A new jersey.”


“What do you call the little rivers which flow into the Nile?”
“Juveniles.”


“What sort of pudding roams wild in the Arctic circle?”
“Moose.”

Explanation
Moose (sounds like the dessert mousse) can be seen in the arctic circle.


“What did the sea say to the shore?”
“Nothing, it just waved.”


“Where do fish keep their money?”
“In riverbanks.”

Explanation
River bank is the land alongside the bed of a river.


“What do you call a country that looks like one thigh?”
“Taiwan.”

Explanation
Taiwan sounds like “thigh-one”.


“What do you call a stoner’s wife?”
“Mississippi.”

Explanation
The river Mississippi sounds like “Mrs Hippy”.


“What city always cheats at exams?”
“Peking.”

Explanation
Peking, the capital of China, sounds like “peeking”.


“Which is the pirates’ favorite country?”
“Aaarrrgghhentina!”

Explanation
“Aaarrrgghh!” is a famous pirate’s exclamation.


“Why does the Boogeyman know all the map symbols?”
“Because he is a legend.”

Explanation
The legend on the map describes the meanings of all symbols.

Ouverture Facile

In case you enjoyed our exciting puzzle crime story “Detective Sanders and the Zodiac Killer”, you may want to try some other similar browser puzzles. One of our favorites is “Ouverture Facile” (“Easy Opening” from French), consisting of over 90 different levels. Test your puzzle skills by clicking the image below and see how far you can get. After you finish with Ouverture Facile, you can check also “Notpron”“God Tower”“Weffriddles”, and “The Python Challenge”.

The Zoomquilt

You may not know this, but we have a strange penchant for optical illusions, fractals, and other mind-perplexing images. That’s why we got so impressed when we saw for the first time the “infinite-zoom” artwork by Nikolaus Baumgarten. Bearing the suitable name “The Zoomquilt”, this seemingly never-ending image instantly became our favorite screen-saver. Take a look at it by clicking the image below, and if you like it, make sure to search YouTube for other similar illustrations.

Parable of the Polygons

Parable of the Polygons is an interesting analysis of diversity in society, beautifully presented through a series of puzzles, simulations, and many, many colorful squares and triangles. This project, created by Vi Hart and Nicky Case, is short, but very insightful and entertaining. Make sure to check it out by clicking the image below.

Audio Illusions

The chances are you have already seen the hundreds of optical illusions we have collected for you on Puzzle Prime, but have you ever encountered any audio illusions? The YouTube channel AsapSCIENCE has created a short video in which they present and explain some of the most famous audio illusions, such as the McGurk effect and the Tritone paradox. Watch their video below and see if you can trust your ears.

The Coolest Crossword of All Time

In 1996, just a day before the election of the 40th President of US, the New York Times published a curious crossword. In the 8th row, the solver should discover a phrase – the “lead story of tomorrow’s newspaper”. More precisely – the name of the future President of the country appears there. But how could New York Times know whether it was going to be Clinton or Bob Dole?

ACROSS:

1. “___ your name” (Mamas and Papas lyric)
6. Fell behind slightly
15. Euripides tragedy
16. Free
17. Forecast
19. Be bedridden
20. Journalist Stewart
21. Rosetta ???
22. 1960s espionage series
24. ___ Perigion
25. Qulting party
26. “Drying out” program
28. Umpire’s call
30. Tease
34. Tease
36. Standard
38. “The Tell-Tale Heart” writer
39. Lead story in tomorrow’s newspaper, with 43A
43. See 39A
45. Gold: Prefix
46. ___ Lee cakes
48. Bobble the ball
49. Spanish aunts
51. Obi
53. Bravery
57. Small island
59. Daddies
61. Theda of 1917’s “Cleopatra”
62. Employee motivator
65. Otherworldly
67. Treasure hunter’s aid
68. Title for 39A next year
71. Exclusion from social events
72. Fab Four name
73. They may get tied up in knots
74. Begin, as a maze

DOWN:

1. Disable
2. Cherry-colored
3. Newspaperman Ochs
4. Easel part
5. Actress Turner
6. Ropes, as dogies
7. Place to put your feet up
8. Underskirt
9. First of three-in-a-row
10. Lower in public estimation
11. Onetime bowling alley employee
12. Threesome
13. English prince’s school
14. ’60s TV talk-show host Joe
18. Superannuated
23. Sewing shop purchase
25. TV’s Uncle Miltie
27. Short writings
29. Opponent
31. Likely
32. Actress Caldwell
33. End of the English alphabet
35. Trumpet
37. Ex-host Griffin
39. Black Halloween animal
40. French 101 word
41. Provider of support, for short
42. Much debated political inits
44. Sourpuss
47. Malign
50. “La Nausee” novelist
52. Sheiks’ cliques
54. Bemoan
55. Popsicle color
56. Bird of prey
58. 10 on a scale of 1 to 10
60. Family girl
62. Famous ___
63. Something to make on one’s birthday
64. Regarding
65. Quite a story
66. Dublin’s land
69. ___ Victor
70. Hullabaloo

The answer is simple, yet very impressive. The crossword’s author, the mathematics professor Jeremiah Farrell, created the puzzle so that it could be solved in two different ways, revealing either “Clinton Elected” or “Bob Dole Elected” in the middle row. Many of the newspaper’s readers didn’t realize the prank and assumed New York Times was displaying a bias towards one of the candidates. They started sending lots of angry letters and calling the editor, complaining about arguably the coolest crossword of all time.

Euclidea

Which was your favorite part of the Mathematics you learned back in high-school? Not sure about you, but we definitely loved the construction problems, where we had to draw some shape, using just a straightedge and a compass. Even though we haven’t solved such problems for many years, we got very excited to discover the amazing game Euclidea, designed by the guys from HORIS International Ltd. If the description below seems intriguing to you, make sure to visit the game’s website and test your skills by clicking the banner below.