Puzzle 17
My BrainBashers electronic world atlas has developed another fault.
I listed six countries, and how far away each was from England, and here are the results:
Spain 14,000 miles
Fiji 12,000 miles
Germany 18,000 miles
Brazil 16,000 miles
India 16,000 miles
Iceland --,--- miles
How far away did it list Iceland as?
Puzzle Copyright © Kevin Stone
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Hint
Look at the vowels (AEIOU).
Answer
20,000.
Each vowel (AEIOU) is worth 4,000 miles and each consonant is worth 2,000.
Puzzle 18
Imagine a bottle recycling skip, empty other than one lonely bottle.
Every hour, on the hour, people come and put bottles into the skip.
The first hour, at noon, one person came and put a bottle in.
One hour later, two people each placed a bottle into the skip.
An hour later, four people each placed a bottle into the skip.
This doubling of people continued until 11pm, when the skip was finally full.
When was the skip exactly half full?
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Hint
Remember that the bottle count doubles each time.
Answer
10pm.
Reasoning
The skip started with 1 lonely bottle.
At Noon: 1 person came along and added a bottle, making the total 2 bottles.
At 1pm: 2 people came along and each added a bottle, making the total 2 + 2 = 4 bottles.
At 2pm: 4 people came along and each added a bottle, making the total 4 + 4 = 8 bottles.
At 3pm: 8 people came along and each added a bottle, making the total 8 + 8 = 16 bottles.
Therefore, the number of bottles in the skip is doubling every hour, as it was full at 11pm, it must have been half full at 10pm.
Puzzle 19
What word is missing from this sequence:
begin · inch · channel · elastic · ? · cellar · arisen · end
Puzzle Copyright © Kevin Stone
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Hint
Look closely at the beginnings and the ends of the words.
Answer
Ice.
Each word begins with the last two letters of the previous word.
Puzzle 20
Starting with COLD, change one letter at a time until you have the word WARM.
Each change leaves the other letters in their original places and must result in a common word.
What is the minimum number of steps required to achieve this change?
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Hint
The second word is CORD.
Answer
COLD, CORD, WORD, WARD, WARM
or
COLD, CORD, WORD, WORM, WARM
or
COLD, CORD, CARD, WARD, WARM.
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