Puzzle 5
What number comes next in this sequence:
42 · 1412 · 11141112 · 31143112 · 132114132112 · ?
Puzzle Copyright © Kevin Stone
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Hint
Say each number, one digit at a time.
Answer
11131221141113122112.
Reasoning
Each term describes the previous term.
For example, 42 = one four, one two = 1412.
And, 1412 = one one, one four, one one, one two = 11141112.
Puzzle 6
You've been asked to buy the cakes for the school party, and you've been given $100 to buy 100 cakes.
Donuts cost 56c, chocolate eclairs cost $2.26 and iced rolls cost 92c.
How can you spend exactly all of the money on the 100 cakes?
Puzzle Copyright © Kevin Stone
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Answer
15 donuts, 10 chocolate eclairs and 75 iced rolls.
15 + 10 + 75 = 100 and 15 x 0.56 + 10 x 2.26 + 75 x 0.92 = 100.00.
Puzzle 7
What do you get if …
… you add 2 to 200 four times?
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Hint
Try it once, and then try it again.
Answer
You get 202 each time!
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