Puzzle 1
By changing the second letter of each word below, you can make another valid word.
Can you change each word such that the second letters will reveal an eleven-letter word when read downwards?
Therefore, what now reads 'vokahliuppw' will become a real word.
ov al
po st
sk in
ma lt
wh en
sl ab
mi ss
fu nd
ap ed
sp ed
sw ay
Puzzle Copyright © Kevin Stone
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Answers
Paperweight.
op al
pa st
sp in
me lt
wr en
sw ab
me ss
fi nd
ag ed
sh ed
st ay
Puzzle 2
Place letters into the grid such that every row, column, and 2x2 block has letters (in any order) that form a common word. Each letter is only used once, and no letter is repeated in the rows / cols / blocks.
Letters allowed: S C H O O L
Note: this puzzle is not interactive, and the squares cannot be clicked.
Puzzle Copyright © Alan Stillson and Frank Longo
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Hint
Row 2's missing letter is L.
Answer
O
J
Y
S
E
K
A
L
M
C
E
O
R
A
H
P
Across: JOYS, LAKE, COME, HARP
Down : MORE, JACK, YEAH, SLOP
Boxes : JOKE, LAYS, CRAM, HOPE
Other anagrams of these words are OK as long as they don't change the answer grid.
Puzzle 3
During a recent BrainBashers race meeting, the fastest driver managed to complete a lap with an average speed of 150 mph.
They managed to complete the first two fifths of the lap at a speed of 123 mph and the second two fifths of the lap at a speed of 164 mph.
At what speed was the final one fifth of the lap length covered?
The answer is not 176 mph.
Puzzle Copyright © Kevin Stone
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Hint
Adding the speeds won't work.
Answer
205 mph.
Reasoning
If we take the number of miles in a lap to be L miles and use Time = Distance ÷ Speed.
The first 2 /5 are covered at 123 mph. Therefore, the time taken was [(2 /5 ) x L] ÷ 123 hours.
The next 2 /5 are covered at 164 mph. Therefore, the time taken was [(2 /5 ) x L] ÷ 164 hours.
The last 1 /5 is covered at y mph. Therefore, the time taken was [(1 /5 ) x L] ÷ y hours.
The entire trip is covered at an average of 150 mph, and we can conclude that:
2L 2L L L
————— + ————— + ——— = ———
5x123 5x164 5y 150
Rearranging and simplifying gives:
1 1 2 2
——— = —— - ——— - ———
y 30 123 164
That means that y = 1 ÷ (1 /30 - 2 /123 - 2 /164 )
Using a calculator gives y = 205.
Puzzle 4
Each of these rows of arrows represents a word. What are the words?
Puzzle Copyright © Kevin Stone
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Hint
Where else might you see arrows and letters together?
Answers
See, new, sense, sew, ewe.
The arrows are pointing in the compass directions N, E, S, and W.
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