Logic Puzzle One
A man is wearing black. Black shoes, socks, trousers, coat, gloves and ski mask. He is walking down a back street with all the street lamps off. A black car is coming towards him with its lights off but somehow manages to stop in time. How did the driver see the man? |
Clue one: He wasn’t carrying a torch |
Clue two: The driver wasn’t using any special technology |
Clue three: There was nothing special about the car |
Clue four: There was nothing special about the man or his clothes |
Clue five: There was nothing special about the street |
Clue six: The man didn’t have any trouble seeing the man |
Clue seven: The man wasn’t surprised that the driver had seen him |
Clue eight: The man could see the man because of light, but not because of artificial light |
Clue nine: There wasn’t any moonlight |
Clue ten: There wasn’t any starlight |
Answer to logic puzzle 1
It was day time.
Answer to logic puzzle 2The poison in the punch came from the ice cubes. When the man drank the punch, the ice was fully frozen. Gradually it melted, poisoning the punch.
Logic Puzzle Two
A man went to a party and drank some of the punch. He then left early. Everyone else at the party who drank the punch subsequently died of poisoning. Why did the man not die? |
Clue 1: The man hadn’t poisoned the other people
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Clue 2: The man didn’t know there was poison in the punch
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Clue 3: The man hadn’t drunk less punch that the other people
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Clue 4: There was nothing special about the man’s body
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Clue 5: The poison was in the punch before the man drunk it
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Clue 6: The poison didn’t go into the man’s body
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Clue 7: There was something different about the punch when the man drank it
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Clue 8: Nobody changed anything about the punch after the man drank it
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Clue 9: The change in the punch was connected to its temperature
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Clue 10: The poison was in the punch all the time but could only be drunk as the temperature increased |
Logic puzzle 3
A woman had two sons who were born on the same hour of the same day of the same year. But they were not twins. How could this be so? |
Clue 1: The boys had the same father as each other
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Clue 2: They had the same mother
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Clue 3: They were conceived at the same time
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Clue 4: They were conceived naturally
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Clue 5: There was nothing physically strange about the boys, although they were slightly unusual |
Answer to logic puzzle 3They were two of a set of triplets (or quadruplets, etc.). This puzzle stumps many people. They try outlandish solutions involving test-tube babies or surrogate mothers. Why does the brain search for complex solutions when there is a much simpler one available?
Logic Puzzle 4
This is an unusual paragraph. I’m curious how quickly you can find out what is so unusual about it. It looks so plain you would think nothing was wrong with it. In fact, nothing is wrong with it! It is unusual though. Study it, and think about it, but you still may not find anything odd. But if you work at it a bit, you might find out. |
If you translated the text into another language it would no longer be strange |
There are no grammar mistakes in the paragraph |
There are no punctuation mistakes in the paragraph |
A native speaker would also find it difficult to spot what is unusual about the paragraph |
There are no spelling mistakes in the paragraph |
However, the strange thing about the text is connected to spelling |
The words in the text are completely normal… |
…but the letters in the text are a little unusual. |
Answer to logic puzzle 4There are no letter E’s in the text. E is usually the most common letter in English.
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PDF version for easy printing: Logic Puzzles Reading Comprehension