Forgive me to celebrate ten years of this column. Toot toot!
I started publishing the porcelain every two weeks at the end of May 2015, where I originally addressed you from the people of “Guzles” – Guardian Puzzles. The amazing metal column did not stick, but the column did so, and here we will be after a decade and 260 columns after that.
Some data. Total page views are now 38 million, whose average is about 150,000 views per puzzle – a huge number, I say. Thanks to everyone for the encouragement and support.
For today’s offers, I decided to return through the archive and re -publish ten of my favorites. Some may be familiar, others do not.
Please grazing, maybe even Guzzy – here until the next ten years!
1. Bats and the ball
Three friends (A, B and C) playing Ping Bong. They play the usual way: the winner remains, and the loser can turn again. At the end of the day, they summarize the number of games each played:
Play 10
B play 15
C play 17.
Who lost the second match?
2. Difficult tram
Why are the upper cables to tram to make a zigzag, instead of the straight line?
3. Read the question
3. What is Never strange or even?
4. Capture the cat
A straight corridor contains 7 doors on one side. Behind one of the doors sits a cat. Your mission is to find the cat by opening the right door. Every day you can open only one door. If the cat is there, you win. If the cat is not present, the door is closed, and you should wait until the next day before you can open the door again.
If the cat is always sitting behind the same door, you will be able to find it in seven days at most, by opening each door in turn. But this harmful mix is restless. Every night you move randomly either one door to the left or one to the right. Although it is behind the first or last door, it has only one option for the place where it can move.
How many days you need now Make sure you can Check the cat?
5. mystery number
I have a tenth number, Abcdefghij. Both the numbers are different, and
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A Divide by 1
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dad Divide by 2
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ABC Divide by 3
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ABCD Divide by 4
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ABCDE Divide by 5
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ABCDEF Divide by 6
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ABCDEFG Divide by 7
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ABCDEFGH Divide by 8
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Abcdefghi Divide by 9
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Abcdefghij Divide by 10
What is my number?
[To clarify: a, b, c, d, e, f, g, h, i, and j are all single digits. Each digit from 0 to 9 is represented by exactly one letter. The number abcdefghij is a ten-digit number whose first digit is a, second digit is b, and so on. It does not mean that you multiply a x b x c x…]
6. The disappearance of the cub
This image was not done. Explain why the reflection has a yellow lion cub.
7. Crazy Triangle
Show that there is a triangle, which is the total number of heights less than 1 mm, which contains more than the surface of the earth (510 meters2).
8. The deck dilemma
Your friend chooses a random card from the standard deck of 52 cards, and this card keeps hidden. You have to guess any of the 52 cards.
Before giving you, you can ask your friend one of the following three questions:
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Is the card red?
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Is the card card card? (Jack, Queen or King)
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Is the card from the Bastone?
Your friend will honestly answer. What is the question you ask for the best opportunity to guess the right card?
9. The question without question
(A) All the following.
(B) Nothing of the following.
(C) Some of the following.
(D) All of the above.
(E) Nothing of the above.
[Just to reassure you, nothing has been omitted here.]
10. Triangle fold
Look for a way to fold a square piece of paper in an equal triangle. The triangle can be of any size.
I will return at 5 pm in the UK with solutions.
Please do not have spoilers instead, please recommend your favorite from 260 you have read here over the years.
Sources: 1. Adrian Benza, 2.5.
I have prepared a mystery here on Mondays since 2015. I have always been aware of the wonderful puzzles. If you want one suggestion, Send me.
