Puzzle 129
At the annual BrainBashers puzzle discussion conference, 20 people attended.
At the start of the conference, each person shook hands with every other person, how many handshakes took place in total?
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Hint
How many hands did the first person shake?
Answer
190.
The first person shook hands with 19 others, the second had already shook hands with the first and therefore shook 18 hands, etc:
19 + 18 + 17 + 16 + 15 + 14 + 13 + 12 + 11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 190
Puzzle 130
Below, 10 nine-letter words have been broken into chunks of three letters.
The chunks have been moved around, no chunk is used twice, and all of the chunks are used.
Can you find the 10 words?
tin som mea and all ple
sca eth ile rbr man ssl
pol rec hai yes gra wat
ing ter ice eap erf ate
nwh pin obs ush row day
Puzzle Copyright © Kevin Stone
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Hint
One of the words is waterfall (wat + erf + all).
Answers
som + eth + ing = something
hai + rbr + ush = hairbrush
gra + ssl + and = grassland
pin + eap + ple = pineapple
pol + ice + man = policeman
mea + nwh + ile = meanwhile
wat + erf + all = waterfall
sca + rec + row = scarecrow
yes + ter + day = yesterday
obs + tin + ate = obstinate
Puzzle 131
Which pair of letters comes next in this sequence:
on · et · wo · th · re · ef · ou · ?
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Hint
Try removing the spaces.
Answer
rf.
This sequence spells out the numbers onetwothreefourf ive etc.
Puzzle 132
What comes next in this sequence:
Dave · Edward · Duncan · Neil · Liam · ?
Choose from:
Alan, Kevin, John, Michael, Steve
Puzzle Copyright © Kevin Stone
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Answer
Michael.
Each name begins with the last letter of the preceding name.
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