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You're the Captain!: A Flightradar24 Puzzle Book
The first ever puzzle book from Flightradar24 At any one time there are nearly 20,000 flights in the sky, and more than 75 million flights a year - and, since...
The Sunday Times Teasers Book 2: Challenge yourself with 100 lateral-
The ultimate lateral-thinking challenge.If you relish a serious mental workout, this collection of 100 brain teasers will demand your very best lateral thinking skills and mathematical rigour to solve. These...