Answer
The letter was written on a typewriter which has a problem with the middle row of letters, which print spaces instead. The letter should have read:
Dear Sir,
I recently visited one of your outlets to buy one of your typewriters. However, as you can see I am having a small problem.
The middle row of the keyboard appears to be faulty.
I would be very grateful if you could despatch a replacement by return post. Failing this, could you please send an engineer to resolve this problem as a matter of urgency.
Yours faithfully,
Mrs Middins.
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Puzzle 110
A very long time ago, at the beginning of the week, I was given some money for my birthday.
On Monday, I spent a quarter of the money on clothes.
On Tuesday, I spent one third of the remaining money on music.
On Wednesday, I spent half of the remaining money on food.
Finally, on Thursday, I spent the last £1.25 on a book.
On Wednesday, I had £1.25 x (1 ÷ one half) = £2.50.
On Tuesday, I had £2.50 x (1 ÷ two thirds) = £3.75.
On Monday, I had £3.75 x (1 ÷ three quarters) = £5.00.
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Puzzle 111
After a recent marathon, the following was noted.
Alex finished after Frankie.Drew finished after Hayden.Frankie finished after Billie.Hayden finished before Alex.Billie finished after Hayden.Billie finished before Alex.Frankie finished before Drew.Alex finished before Drew.
Who finished where?