Puzzle 1
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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Puzzle 2
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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Puzzle 3
What number is …
… three-quarters of eight-ninths of one-half of 2001?
Puzzle Copyright © Kevin Stone
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Puzzle 4
During the recent BrainBashers cipher convention, a binary code contest took place.
The contest consisted of a binary code transmission where the spaces between the letters were missing and there was no punctuation.
Each letter of the alphabet was translated into its binary equivalent based on its position in the alphabet. The resulting code was then blocked in groups of five digits.
a=1, b=10, c=11, d=100, e=101, f=110, g=111, h=1000, i=1001, j=1010, k=1011, l=1100, m=1101, n=1110, o=1111, p=10000, q=10001, r=10010, s=10011, t=10100, u=10101, v=10110, w=10111, x=11000, y=11001, z=11010
Can you find 10 countries?
10101 10000 11110
10111 11100 10110 011
10000 11111 10011 11010 0
11010 01011 11011 101
11100 01001 11001 01
11011 11110 01011 11111 11111
11010 11101 10100 11
10100 11111 11011 11
10000 11110 11101 1
11011 11111 10111 11111 10010 011
Puzzle Copyright © Kevin Stone
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