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Fewest Queens For Full Attack

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

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

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No Eyes But Once Could See

I do not have eyes but I once could see. I used to have thoughts but now I’m empty.

A skull.

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$500 For Basketball

500 people attended a high school basketball game and raised $500 for the school.

The prices were as follows:
Mothers $3.00
Fathers: $2.00
Children $0.48

More mothers than fathers turned up. How many children were there?

375 children (70 mothers and 55 fathers)

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Slice My Head

You use a knife to slice my head and weep beside me when I’m dead.

An onion.

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Letters, Letters, What Comes Next?

What letter comes next letter in this series?

A E F H I ___

K. It’s the series of capital letters without curves in alphabetical order.

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Binds Two But Touches One

What binds two people yet touches only one?

A wedding ring.

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Hidden Animals

How many animals can you find in this story?

“Scram, you can’t catch me!” yelled the thief. While running to escape, his shirt skewered a box of nails. He ripped free, but skidded to a stop as he passed a policeman. He tried to run again, then cowered in fright. Crime doesn’t pay.

I found thirteen, listed in the order they’re found.

1. ram
2. ant
3. cat
4. ape
5. ewe
6. ox
7. kid
8. ass
9. man
10. nag
11. hen
12. cow
13. doe

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I Belong To Everyone

I belong to everyone. Sometimes I make you happy, sometimes I make you sad. I will never end until the day you do.

Your thoughts.

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Bowl That Can’t Be Filled

I am as round and deep as a bowl, but all the world’s water couldn’t fill me up. What am I?

A sieve.

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Horse Fence

Farmer Finnegan needs to build a fence to keep his horses on his property. He only has a little over 1.5 miles of fence materials, but there’s also a mile-long straight river running through his property. What shape should he use for the fenced in area to give his horses the most space possible?

Our dear friend Finnegan should build a half-circle fence with the river as the diameter, giving the horses about 0.4 square miles to frolic and play in.

Area of semi-circle = πr2 / 2 = π × .5 miles2 / 2 = 0.3927

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