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Puzzle 197 


What is the 10th prime number?

2, 3, 5, 7, …

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Puzzle 198 


What are the next three letters in this sequence:
HDD
TMRUTC
TCSO
TMRD

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Puzzle 199 


Once you have unscrambled the following countries, the first letters can be anagrammed to make a hidden country.
aadnorr aehiiopt ceeegr aaaacdgmrs anorwy aaimnor eemny

Puzzle Copyright © Kevin Stone

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Puzzle 200 


How many squares of any size on this chessboard do not contain a rook?

Rooks On C3, C6, F3, F6

Puzzle Copyright © Kevin Stone

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