Puzzle 109
Every year, just before my birthday, I open my money box to see how much money I have saved.
Imagine my surprise when I found exactly £49.58 made up of equal numbers of 2p, 5p, 10p and 20p.
How many of each coin did I find?
Puzzle Copyright © Kevin Stone
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Hint
Remember that you have the same number of each coin.
Answer
134 of each coin.
Reasoning
We have equal numbers of 2p, 5p, 10p, and 20p.
And 2p + 5p + 10p + 20p = 37p.
There are 134 lots of 37p in £49.58.
Double-Checking
134 x 37 = 4958.
Puzzle 110
How many times can you take 7 away from 49?
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Hint
This is a trick question.
Answer
Once.
After which you will be taking 7 from 42!
Puzzle 111
Which is larger, the number of seconds in a week...
...or the number of minutes in a year?
Puzzle Copyright © Kevin Stone
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Hint
There are 60 seconds in a minute, and 60 minutes in an hour.
Answer
Seconds in a week.
Reasoning
There are 60 x 60 x 24 x 7 = 604,800 seconds in a week.
There are 60 x 24 x 365 = 525,600 minutes in a (non-leap) year.
Puzzle 112
Which word comes next in this sequence:
India Victor X-Ray Lima Charlie {?}
Puzzle Copyright © Kevin Stone
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Hint
Think of Roman numerals.
Answer
Delta.
Take the Roman numerals in sequence, and convert to the phonetic alphabet.
1 = I = India
5 = V = Victor
10 = X = X-Ray
50 = L = Lima
100 = C = Charlie
500 = D = Delta
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