## IQ Challenge: Over 500 New Mind-Bending PuzzlesMore than 500 conundrums, mind-benders, and mathematical teasers will help puzzle fans push their IQ levels to the maximum. Visualize this collection as a ladder into the stratosphere of intelligence: 20 levels of ascending difficulty each contain a variety of numerical and alphabetical questions that tease and stimulate the brain. Start from the beginning, with Level One, and work methodically through to the end. Think logically, rationally, and laterally when unraveling these, and watch for emerging patterns that make solving the later problems easier. Resist the temptation to look at the answers (all at the end), and when you're stumped, try to look at the puzzle from a different perspective--that's how to sharpen the wits and train the mind. |

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17 PUZZLE alphabet in steps alphabetic sequence anticlockwise arrangement of circles bottom row central circle central letter central number centre completes the puzzle completes this sequence corresponding segments digit number double each number equals the sum follow the alphabetic follow the sequence Following a logical give the value grid left and right left to right letter completes letters advance letters follow letters move letters what needs ln each circle ln each diagram ln each row ln each triangle ln this sequence logical sequence lower right moving clockwise number completes number is missing number to give numbers equals numbers follow numbers increase numerical values o#ooo oo#o oo#oo ooo ooo oooo ooooo ooooo putting the results puzzle correct PUZZLE Following PUZZLE ln PUZZLE PUZZLE PUZZLE What number PUZZLE Which letter PUZZLE Which number right hand letters right hand numbers sequence of letters Split the diagram Starting top left top row top to bottom