Puzzle 197
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.
Can you find 10 girl's names?
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
11001 11000 11001 01110 01
10001 11101 11011 000
11001 10101 10010 10111 10
11101 00111 11111 10010 1
11101 11110 1001
10010 11110 00101 1100
10101 11110 01010 01111 0
11010 11001 00101 01110 01
10011 11110 10010 0101
10010 11110 10011 00111 01
Puzzle 198
In each of these sentences, can you replace the missing number.
The number is written as a word (e.g. five, twenty-four, thirty-three), and each sentence is correct after the replacement.
This sentence contains exactly ? E's and not one more.
However, this sentence contains exactly ? S's, with a single Z.
Finally, to finish, this sentence has exactly ? I's.
Puzzle 199
How many squares of any size on this chessboard do not contain a rook?
