Puzzle 109
What is the minimum number of queens required on a chessboard such that all squares are attacked?
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Hint
Try this with a real board.
Answer
5 queens are required.
Puzzle 110
What number comes next in this sequence:
42 1412 11141112 31143112 132114132112 ?
Puzzle Copyright © Kevin Stone
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Hint
Say each number, one digit at a time.
Answer
11131221141113122112.
Reasoning
Each term describes the previous term.
For example, 42 = one four, one two = 1412.
And, 1412 = one one, one four, one one, one two = 11141112.
Puzzle 111
What word is the same backwards and upside down?
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Hint
Which letters look the same upside down and backwards?
Puzzle 112
Can you complete the following four 5-letter words?
The missing letters, in order, spell an animal.
--ute
c--el
st--g
car--
Puzzle Copyright © Kevin Stone
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Hint
The animal begins with the letter F.
Answer
Flamingo.
--ute = flute
c--el = camel
st--g = sting
car-- = cargo
