Puzzle 1
What comes next in this sequence:
boron · carbon · nitrogen · oxygen · ?
Puzzle 2
What word can prefix (go before) these letters to make a valid word in each case:
..ir
..ad
..lm
..ed
..lp
Puzzle 3
Three people check into a hotel.
They pay £30 to the manager and go to their room.
The manager suddenly remembers that the room rate is £25 and gives £5 to the porter to return to the people.
On the way to the room the porter reasons that £5 would be difficult to share among three people so they keep £2 and give £1 to each person.
Now each person paid £10 and got back £1.
So they paid £9 each, totalling £27. The porter has £2, totalling £29.
Where is the missing £1?
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
What is the answer to the question being asked?
11001 11010 01000 10011 00111 00110 01111 01101 01100 10110 01100 10011 10110 10011 11010 11100 10100 10000 10101 11010 11010 11001 01100 11010 01000 11111 01011 11100 01010 01001 10100 10111 11111 01011 10010 01000 10111 00100 00100 11101 00111 00111 01110 11001 10011 10011 10110 00011 00101 10001 10101 10110 01110 10010 01111 11110 10111 10001 10100 10011 00111 11111 10101 10000 11001 01011 00111 11111 10101