Riddles and Brain Teasers

Fewest Queens For Full Attack

What is the smallest number of queens required on a chess board to attack all squares?

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5. To see where they need to be placed, check out the diagram on Wolfram’s Queens Problem page.

Posted in Brain Teasers

You Twirl My Body

You twirl my body but I keep my head up high.
When I go in I keep things tight.

What am I?

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A screw.

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Tagged with What am I?

I A N Rebus

What does the following rebus represent?

I           A
      N
R           B

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Scatterbrain.

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Tagged with rebus

What Toby Likes

Toby likes indigo but not red. He likes onions but not turnips. He likes forms but not shapes.

According to the same rule, does he like tomatoes or avocados?

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Toby only likes words that start with prepositions, like his name. Thus he likes tomatoes, not avocados.

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Instrument Can’t Be Touched Nor Seen

What instrument can make any sound and be heard but not touched or seen?

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Your voice.

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Arms and Legs But No Head

What has arms and legs but no head?

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A chair.

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Sum of Consecutives

What is the sum of the numbers in the following list which are consecutive?

15  5 10 28
24  7 18 26
11 21 17 13
22  9  1 20

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The consecutive numbers are: 9, 10, 11; 17, 18; and 20, 21, 22.

The sum of those numbers is 128.

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A Sign in Japan

This sign was seen in Japan. What does it mean?

A sign seen in Japan

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It’s a glass sign containing instructions on a glass door.
It says PULL on one side and PUSH on the opposite side.

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The Pope Has It

The Pope has it but he does not use it. Your father has it but your mother uses it. Nuns do not need it. Arnold Schwarzenneger has a big one, Michael J. Fox’s is quite small. What is it?

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A last name, also known as a surname.

Posted in Brain Teasers

Green House And Lots of Babies

There was a green house. Inside the green house there was a white house. Inside the white house there was a red house. Inside the red house there were lots of babies. What is it?

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A watermelon.

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