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12. Which is the odd one out?
  IQ test. Accurate and free online iq test # 4 with answers and solutions. Question # 12. Which is the odd one out?
 

Explanation:
1 is the same as 7; 2 is the same as 5; 3 is the same as 4. (In the picture # 6 stars ends directed toward the corner of the two lines, on the other pictures it is not).