Puzzle 201
In this sequence of planets, can you work out why they are listed in this order?
Jupiter, Saturn, Uranus, Neptune, Earth, Mars, Mercury, Venus.
Puzzle Copyright © Kevin Stone
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Hint
The answer is something to do with time.
Answer
The order is based on the length of day of the planet in Earth hours and days.
Jupiter has the shortest day (≈ 9 Earth hours), and Venus has the longest day (≈ 243 Earth days).
Puzzle 202
Starting with any number on the top row, make your way to the bottom, adding the numbers as you go.
Each time you must move to the next row, but you can move either straight down, or one place to the left or right.
What is the highest total you can make? What is the lowest?
| 1 |
5 |
1 |
5 |
1 |
5 |
| 3 |
3 |
2 |
3 |
3 |
4 |
| 2 |
3 |
4 |
4 |
3 |
2 |
| 2 |
2 |
3 |
2 |
2 |
4 |
| 2 |
2 |
4 |
3 |
4 |
2 |
| 4 |
4 |
4 |
4 |
2 |
3 |
Note: this puzzle is not interactive, and the numbers cannot be clicked.
Puzzle Copyright © Kevin Stone
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Hint
The lowest route contains more 2's than the highest route.
Answers
Highest = 24. Lowest = 12.
Highest
Lowest
Puzzle 203
Can you unscramble these animal anagrams?
the plane
cool dicer
argon oak
fig fear
soon richer
zip hem cane
trio toes
popout mishap
upper coin
tartan leeks
Puzzle Copyright © Kevin Stone
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Hints
The first letters of the animals are: E, C, K, G, R, C, T, H, P, R.
Answers
elephant
crocodile
kangaroo
giraffe
rhinoceros
chimpanzee
tortoise
hippopotamus
porcupine
rattlesnake
Puzzle 204
What are the next five letters in this sequence:
HDSOAW
HDHAGF
ATKHAATKM
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Hint
From common children's song.
Answer
CPHTA.
From:
Humpty Dumpty sat on a wall.
Humpty Dumpty had a great fall.
All the king's horses and all the king's men
Couldn't put Humpty together again.