Mr.
Smith went to a shop yesterday where he spent half of his money within
30 minutes. After spending his money he had the same amount (number) of
cents as he had before in dollars and he possessed half as many dollars
as he had before in cents. How much money did he spend?
ANSWER #1 (click to enlarge):
 PUZZLE #2 Mr.
McGuire asked a policeofficer: "Could you please tell me what time it
is?" Officer Clany who was known to like mathematics answered: "If you
add 1/4 of the time from midnight up to now to 1/2 of the time from now
to midnight you have the exact time. So what time is it?ANSWER #2 (click to enlarge): PUZZLE #3 2, 6, 30, 260, ____ANSWER #3 N^n+n.. 
PUZZLE #4 12, 35, 711, 1317, 1923, 2931, _____
ANSWER #4 Each member contains two sets of prime numbers, consecutively. 
PUZZLE #5 more than one answer. I'm looking for a perfect answer, though (Also a solid answer): 4, 6, 8, 12, ____
ANSWER #5 Number of faces of Platonic solids in the order tetrahedron, cube, octahedron, dodecahedron, icosahedron. 
PUZZLE #6 1, A, 13, 1C, 25, ____
ANSWER #6 The formula is: A+9=B, B+9=C... (only in Hexadecimal which is base 16). 
PUZZLE #7 1, 4, 36, 576, 14400, _________
ANSWER #7
N!^2, N+1!^2... 
PUZZLE #8 0, 1, 1.585, 2, 2.322, 2.585, 2.807, 3, 3.170, 3.322, _____
HINT: A SLIDE RULE WOULD HELP
ANSWER: #8
2 (log n) = 1,2,3,4,etc 
PUZZLE # 9 #:1 :: Matrix : _____
ANSWER: #9
THE IDENTITY MATRIX, WHICH IS EQUAL TO ONE.
A THREE COLUMN IDENTITY MATRIX: 100 010 001 
 Hose puzzle:
Large hose rate=1/10 pool per hour Small hose rate=1/15 pool per hour Two large + one small rate= 3/30 + 3/30 + 2/30 = 8/30 = 4/15 pool per hour Time required = 15/4 hours or 3 3/4 hours or 3 hours and 45 minutes.

