Puzzle 837
If tomorrow's yesterday is today…
…what day is yesterday's tomorrow?
Puzzle Copyright © Kevin Stone
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Hint
Tomorrow's yesterday is always today.
Answer
Today.
Reasoning
Tomorrow's yesterday is always today.
And yesterday's tomorrow is also always today.
Puzzle 838
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
Puzzle 839
Dave's current age is the age of his favourite book (which is 14 years old) plus one third of his age.
How old will he be when his favourite book is twice its current age?
Puzzle Copyright © Kevin Stone
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Hint
A little algebra might help.
Answer
He will be 35 in 14 years.
Reasoning
He is currently 21.
If X is his current age, then:
X = 14 + X
———
3
so
2X = 14
———
3
and
2X = 42
So
X = 21
He is currently 21 and his favourite book is currently 14 years old, when it is 28 years old (double its age) he will be 35.
Puzzle 840
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 onetwothreefourfive etc.
