BrainBashers - Random Puzzles

Puzzle 197

Below is 88, moving only two lines, can you turn this into 81?

Calculator Display: 88

Note: this puzzle is not interactive, and cannot be clicked.

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Puzzle 198

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

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Puzzle 199

What letter comes next in this sequence:

B r a i n B ?

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Puzzle 200

In 1978,

what happened on the 5^th of June,

at 34 minutes past 12?

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