Puzzle 1
Which is larger:
square feet in half a square mile
cubic yards in a cubic furlong
Puzzle Copyright © Kevin Stone
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Hint
There are 3 feet in a yard, 1760 yards in a mile, and 8 furlongs in a mile.
Answer
Square feet in half a square mile.
Reasoning
There are 3 feet in a yard, 1760 yards in a mile, and 8 furlongs in a mile.
A mile is 1760 x 3 = 5280 feet in a mile.
A square mile is 5280 x 5280 = 27878400 square feet.
Therefore, half a square mile = 13,939,200 square feet.
A furlong is 1760 ÷ 8 = 220 yards.
Therefore, a cubic furlong is 220 x 220 x 220 = 10,648,000 cubic yards.
Puzzle 2
My shirt has 5 buttons, my cardigan has 2 buttons, and my suit jacket has no buttons.
How many buttons do my trousers have?
Puzzle Copyright © Kevin Stone
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Hint
It depends on the length of the word.
Answer
2 buttons.
The number of buttons is 10, minus the length of the word.
Puzzle 3
Which letters come next in this sequence:
NE · US · RN · ER · RS · ?
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Answer
TH.
The last two letters of the planets in reverse order from the sun.
Puzzle 4
I have a jar of sweets.
There are 234 red, 26 blue, 67 green and 63 yellow sweets.
What chance do I have of picking a blue one with my eyes shut?
Puzzle Copyright © Kevin Stone
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Hint
How many sweets in total are there?
Answer
1 in 15.
Reasoning
In total, there are 390 sweets in the jar, and 26 of them are blue.
So the chance of picking blue is 26 in 390 = 1 in 15 = 6.66%.
