Puzzle 5
The BrainBashers Speed Skating championship was recently completed, however, the computer storing the results suffered from a power cut!
Using the following snippets of information, can you work out who finished where, their ages (18, 21, 24, and 28), and the colour they wore?
The youngest, who didn't wear blue, won the championship.
Jesse was three years younger than the person who wore red.
Kelly performed well to finish in second place.
Logan wore green, and Max was the oldest competitor.
The person who wore yellow was younger than Kelly.
The person who came last was 21.
Puzzle Copyright © Kevin Stone
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Hint
Where did Max finish?
Answer
#1 Logan Green 18
#2 Kelly Red 24
#3 Max Blue 28
#4 Jesse Yellow 21
Reasoning
By (1), the 18-year-old won the championship.
By (3), Kelly finished second.
By (6), the person who came last was 21.
#1 18
#2 Kelly
#3
#4 21
By (4), Max was the oldest competitor at 28, and can only have finished third. Which means that Kelly must have been 24.
#1 18
#2 Kelly 24
#3 Max 28
#4 21
By (2), the person who wore Red can only be 21 or 24, so Max can't have worn Red. Max didn't wear Green (4), and didn't wear Yellow (5), so Max must have worn Blue.
#1 18
#2 Kelly 24
#3 Max Blue 28
#4 21
By (5), Kelly didn't wear Yellow, and by (4) didn't wear Green, so must have worn Red.
#1 18
#2 Kelly Red 24
#3 Max Blue 28
#4 21
By (2), Jesse was 21. Which means that Logan was 18.
#1 Logan 18
#2 Kelly Red 24
#3 Max Blue 28
#4 Jesse 21
By (4), Logan wore Green. Which means that Jesse wore Yellow.
#1 Logan Green 18
#2 Kelly Red 24
#3 Max Blue 28
#4 Jesse Yellow 21
Puzzle 6
Start in the bottom left corner and move either up or right, one square at a time, using the numbers and the mathematical signs along the way. What is the largest total you can make?
| + |
2 |
– |
4 |
+ |
2 |
| 2 |
+ |
2 |
– |
2 |
+ |
| – |
1 |
+ |
3 |
– |
3 |
| 2 |
– |
3 |
+ |
1 |
– |
| + |
1 |
– |
3 |
+ |
2 |
| 3 |
+ |
3 |
– |
2 |
+ |
Note: this puzzle isn't interactive, and the squares can't be clicked.
Puzzle Copyright © Kevin Stone
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Answer
The largest total that can be made is 7.
Puzzle 7
Last week I decided to cycle to my Grandparents's house.
On the 1st day, I cycled half of the distance.
On the 2nd day, I cycled one half of the remaining distance.
On the 3rd day, I cycled three quarters of the remaining distance.
On the 4th day, I cycled 10 miles.
On the 5th day, I cycled two thirds of the remaining distance.
On the final day, I cycled the remaining 5 miles.
How far is it to my Grandparent's house?
Puzzle Copyright © Kevin Stone
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Hint
Try working backwards.
Answer
400 miles.
Reasoning
Working backwards:
On the final day I cycled the remaining 5 miles
On Day 5, I started with 15 miles (as I cycled two thirds, leaving 5 miles).
On Day 4, I started with 25 miles (as I cycled 10 miles).
On Day 3, I started with 100 miles (as I cycled three quarters, leaving 25 miles).
On Day 2, I started with 200 miles (as I cycled half, leaving 100 miles).
On Day 1, I started with 400 miles (as I cycled half, leaving 200 miles).
Puzzle 8
Below you can find a proverb.
The letters have been converted to their location in the alphabet.
For example: CAT = 3 + 1 + 20 = 3 1 2 0
1 2 1 2 1 7 8 2 0 5 1 8 9 1 9 2 0 8 5 2 5 1 9 2 0 1 3 5 4 9 3 9 1 4 5
Puzzle Copyright © Kevin Stone
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Hint
The first letter is L (12).
Answer
Laughter is the best medicine.
Reasoning
Laughter = 12 + 1 + 21 + 7 + 8 + 20 + 5 + 18
is = 9 + 19
the = 20 + 8 + 5
best = 2 + 5 + 19 + 20
medicine = 13 + 5 + 4 + 9 + 3 + 9 + 14 + 5.
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