Puzzle Prime is tirelessly looking all around the internet to find the very best puzzles and bring them all to puzzleprime.com.
Since 2018, Catriona Shearer, a UK teacher, has been posting on her Twitter various colorful geometry puzzles. In this mini-course, we cover some of her best problems and provide elegant solutions to them. Use the pagination below to navigate the puzzles, which are ordered by difficulty.
Who says science jokes are not funny? Below you can see some of the best Biology jokes we know, along with short explanations
Do you know any funny Biology jokes yourself? Let us know in the comment section below.
Two blood cells met and fell in love. Alas, it was all in vein.
Explanation
A clever
Pavlov is sitting at a pub, enjoying a pint. Suddenly the phone rings and he jumps up shouting, “Oh no, I forgot to feed the dog!”
Explanation
Pavlov is a physiologist who used to ring a bell every time he fed his dogs. After some time, he noticed that ringing the bell by its own caused salivation in his dogs, even if he didn’t offer them any food.
“I wish I was adenine, then I could get paired with U.”
Explanation
In RNA (Ribonucleic acid), adenine (A) makes a “base pair” with uracil (U).
“What did one sister chromatid say to the other?”
“Stop copying me.”
Explanation
“Sister chromatids” are two identical chromatids (replicated chromosomes), which are joined with each other.
What does DNA stand for? National Dyslexia Association.
Explanation
Dyslexia is a reading disorder, which causes various troubles during reading, even for people with normal intelligence. If read correctly, the abbreviation for National Dyslexia Association should be NDA, not DNA.
“What did the stimulus do to the neuron after they got married?”
“It carried it over the threshold.”
Explanation
The “threshold” is the depolarization level over which a stimulus must carry the neuron, in order for an action potential to be fired.
An infectious disease enters a bar. The bartender says, “We don’t serve your kind here”. The disease replies, “Well, you are not a very good host.”
Explanation
The word “host” has several meanings, one of which is “a person who accommodates guests”, and another one is “an animal or a plant in which a parasite lives”.
The scientists have just found the gene for shyness. They would have found it earlier, but it was hiding behind two other genes.
“What is the fastest way to determine the sex of a chromosome?”
“Pull down its genes.”
Explanation
Word play with the words “genes” and “jeans”.
One lab rat says to another:
“Girl, you are so hot, you denature my proteins.”
Explanation
When things get hot, proteins denature, i.e. lose their shape and structure.
“What did Gregor Mendel say when he founded genetics?”
“Woopea!”
Explanation
Gregor Mendel made his experiments using pea plants.
“What is sleeping brain’s favorite rock band?”
“REM”
Explanation
REM stands for “rapid eye movement”, which occurs during sleep.
With the huge success of real-life Escape Rooms all around the world, more and more puzzle manufacturers have been trying to recreate the experience with their solve-at-home kits. ThinkFun‘s latest offering, Escape the Room: The Cursed Dollhouse, is possibly the closest you can get to the real thing, so far.
The setup of “The Cursed Dollhouse” is quick and simple. Within a few minutes you get to build a cardboard model of a dollhouse, turn on the recommended soundtrack of creepy music, and light up a few candles to get into the right mood. Once you do this, you can start reading the story of the house and unravel its mysteries.
You begin the adventure in the living room, where you have to solve several puzzles, involving a broken bookshelf, a dusty carpet, and a spiderweb on the wall. Then, you make your way through the rest of the house: kitchen, bathroom, bedroom, until you get to the attic. Each of the rooms you visit contains multiple objects, including hidden ones, which you need to use in order to solve its three challenges. Once you solve a challenge, you get a cryptic symbol which you must enter in the “solution wheel”. Get the three symbols correctly and proceed to the next room.
As you progress, you will encounter various puzzles, including many mechanical ones. You will have to cut, fold, entangle, and do all kinds of fun activities. The puzzles are logical and satisfying to solve. There were one or two which my group found a bit confusing, but fortunately, ThinkFun has created a website, where players can get small hints without spoiling the entire puzzles. In the end, all participants were very happy with the time we spent playing together.
While the price of “The Cursed Dollhouse” is a bit steep, the game provides a lengthy and immersive experience which justifies the cost. It also can be replayed by another group of people using the provided printable forms from the official website.
Topple is a new online magazine that can be printed out and solved with pen and paper, the old-fashioned way. The price of each issue is just a meager $1, and for that amount you get a PDF of about 10 pages and up to 20 puzzles.
The magazine authors have worked hard to offer a wide range of puzzles for everyone to enjoy. There are interesting trivia questions, rebuses, grid logic puzzles, as well as some unique challenges I have never encountered before. The number of puzzles in the magazine keeps increasing with each next issue:
Issue 1: 7
Issue 2: 7
Issue 3: 10
Issue 4: 10
Issue 5: 10
Issue 6: 12
Issue 7: 16
Issue 8: 18
Issue 9: 18
The quality of the puzzles keeps improving as well, as you can see from these two identical puzzles, the second one of which has updated artwork.
To catch a glimpse of the activities you will encounter in Topple, you can check the 4-page sampler provided below. Regular issues are much longer and feature proper formatting, complete with front and back covers. It’s just like purchasing any magazine from a newsstand.
If you enjoy these puzzles as much as we do, we recommend you get the latest issue of Topple and then start collecting the previous ones in reverse order. At just $1, it will be hard to find something that provides better value for the money.
Brain Drop is a new puzzle podcast by Brian Hobbs, released on a (mostly) weekly basis. In each episode, Brian presents 3 new puzzles and shares the solutions of the puzzles from the previous week. He uses professional voicework, music, and sound effects, to set up the mood and make his show more entertaining. Click the banner below to check out Brain Drop and see if you can answer Brian’s latest set of puzzles!
In the past few days, I, my friends, and a lot of Twitter people have been trying to beat each other’s scores in the game “Is This Prime?”.
The game itself is simple; you are shown random integers on the screen, and you need to guess whether they are prime or composite. It is fast-paced and fun, and a good opportunity to exercise some mental math. Below we have listed a few tips which can help you beat our personal record of 67 points.
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