Puzzle 57
On which side of a cup …
… is it best to have the handle?
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Hint
It's neither LEFT not RIGHT.
Puzzle 58
Moving up or right, what is the largest total you can make, using the mathematical signs along the way?
+
4
−
2
+
2
2
+
2
−
2
+
−
1
+
2
−
4
2
−
1
+
1
−
+
1
−
2
+
3
3
+
3
−
4
+
Note: this puzzle is not interactive, and the numbers cannot be clicked.
Puzzle Copyright © Kevin Stone
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Answer
The largest total that can be made is 8.
Puzzle 59
If I was in Florida and dropped a heavy ball into a bucket of water which was at a temperature of 45 °F and dropped another identical ball into an identical bucket of water at a temperature of 25 °F …
… which ball would hit the bottom of the bucket first?
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Hint
Remember that the question uses Fahrenheit °F.
Answer
The ball would reach the bottom of the 45 °F bucket first because the water is frozen in the 25 °F bucket!
Puzzle 60
What number is …
… three-quarters of eight-ninths of one-half of 2001?
Puzzle Copyright © Kevin Stone
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Hint
Can the fractions be simplified?
Answer
667.
Reasoning
3 8 1
— of — of — of 2001
4 9 2
which simplifies to:
24
—— of 2001
72
which simplifies to:
1
— of 2001
3
Giving 667.
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