Puzzle 129
After a recent marathon, the following was noted.
Alex finished after Frankie.
Drew finished after Hayden.
Frankie finished after Billie.
Hayden finished before Alex.
Billie finished after Hayden.
Billie finished before Alex.
Frankie finished before Drew.
Alex finished before Drew.
Who finished where?
Puzzle Copyright © Kevin Stone
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Answer
Hayden
Billie
Frankie
Alex
Drew
Puzzle 130
What is missing from this sequence:
teloiv ogidni eulb ? wolley egnaro der
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Hint
Look to the skies for the answer.
Answer
neerg.
These are the colours of the rainbow reversed.
Puzzle 131
My friend's son, Billy, has the same number of brothers as sisters.
His sister, Laura, has twice as many brothers as she has sisters.
How many boys and girls are in the family?
Puzzle Copyright © Kevin Stone
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Hint
A little bit of algebra might help.
Answer
There are four boys and three girls.
If we call the number of boys B, and girls G.
From the first statement (we take one off as Billy is a boy):
B - 1 = G
and similarly:
2 x (G - 1) = B
Substitute G from the first equation into the second equation to give:
2 x ((B - 1) - 1) = B
2 x (B - 1) - 2 = B
2 x B - 2 - 2 = B
2 x B - 4 = B
B = 4
which means that B = 4 and hence G = 3.
Puzzle 132
Where on Earth do …
… the winds always blow from the South?
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Hint
Where on Earth is everything South?
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