A Note in a Math Class
A boy receives a small note from a girl during his math class. He unfolds the note and sees the following expression.
What does it mean?
SOLUTION
If you fold the note the other way around, the message “I LOVE YOU” appears.
Category: Brain Teasers
A collection of Math, Chess, Detective, Lateral, Insight, Science, Practical, and Deduction puzzles, carefully curated by Puzzle Prime.
We do not know where this puzzle originated from. If you have any information, please let us know via email.
Sequence 4, 2, 3, 4
What is the next number in this sequence:
4, 2, 3, 4, 6, 2, 4, ?
SOLUTION
The answer is 8. The numbers represent the lengths of the words in the question:
what → 4
is → 2
the → 3
next → 4
number → 6
in → 2
this → 4
sequence → 8
Canals on Mars Maze
Starting with the letter “T” at the bottom, visit all spots exactly once before returning to the beginning, so that the letters you pass through spell a complete sentence.
SOLUTION
The path goes through the letters “T”, “H”, “E”, “R”, “E”, “I”, “S”, “N”, “O”, “P”, “O”, “S”, “S”, “I”, “B”, “L”, “E”, “W”, “A”, “Y”, to spell the sentence “There is no possible way”.
The Next Letter
Which is the next letter in the following sequence:
S S E N T T T T T T T T T T T T T T T T T T T T ?
SOLUTION
The answer is F. These are the first letters of the numbers Seventeen, Eighteen, Nineteen, Twenty, Twenty-one, and so on.
Eight Sticks
You have 8 thin sticks; 4 of them have length 1 and the other 4 have length 2. Arrange the sticks so that they form exactly 3 identical squares, without any leftovers.
SOLUTION
The solution is shown below.
Find the Mistake
CAN YOU FIND THE
THE MISTAKE?
1 2 3 4 5 6 7 8 9
SOLUTION
The word “THE” appears twice in the question. Read carefully!
Trotsky’s Killer
August 20, 1940
Leon Trotsky, an enemy of Josef Stalin, had been in exile for 11 years. On this day, a Soviet assassin entered Trotsky’s house in Mexico City and hit him in the head with an ice axe. He died the next day.
Here is a group of suspects who were rounded up. Each wrong suspect has one different feature from the correct suspect. Who killed Trotsky?
SOLUTION
The killer of Leon Trotsky was Ramón Mercader.
Canaries in Space
NASA was considering sending canaries into space to study them under zero gravity. The project was scrapped when someone realized that in spite of having sufficient water supplies, they could die of dehydration within a few hours. Why?
SOLUTION
Unlike humans, birds need gravity in order to swallow. Thus, in space they wouldn’t be able to drink and will die of dehydration.
53 Bicycles and a Dead Man
There is a room with a table, 53 bicycles, and four men. One of the four men is dead. How did he die?
SOLUTION
The “bicycles” are the (famous) Bicycle playing cards. The four men were playing poker, but one of them was cheating with an extra card, so he got killed.
The Ark
How many species of animals did Moses take on the Ark with him?
SOLUTION
None. It was Noah’s ark, not Moses’.