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Last week I travelled from London to Leeds, a distance I measured as 174 miles.

I started at 9.15am and completed the journey with an average speed of 40 miles per hour.

On the way back, in the evening, I travelled exactly the same route, starting at 5.15pm. The traffic was light, and I completed the journey with an average speed of 60 miles per hour.

What was the overall average speed for the round trip?

The answer is not 50 mph.

Puzzle Copyright © Kevin Stone

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What number comes next in this sequence:

7 · 8 · 5 · 5 · 3 · 4 · 4 · ?

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What is the only number not found in the Roman numeral system?

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Using the letters AAEEIIMMPPTT complete this grid. The grid reads the same across as down.

L
	D
		A
			E

Note: this puzzle is not interactive, and the squares cannot be clicked.

Puzzle Copyright © Kevin Stone

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