Read the puzzle through to get the gist of the problem you are trying to solve. Logic problems tend to be multi-layered with complex clues, which can make it difficult to figure out exactly what part of the word problem needs to be solved.
Re-read the clues to get a sense of the syntactical structure of the sentences. Often, what isn't said is just as important as what is said. Take, for example,a logic problem that involves a number of people and asks you to determine where they all sit in the room. A clue that tells you that Mr. X does not sit with Mr. Y because Mr. X doesn't like Mr. Y's friends not only helps you determine that Mr. X and Mr. Y don't sit together, but also helps to alert you to clues that mention the names of Mr. Y's friends because Mr. X won't sit with them either.
Make a chart or grid to help you visualize the problem you are solving. Such charts are known as "cross-hatch grids" or "ABC grids" and have all the pertinent elements (names, characteristics, etc.) lined up in rows with intersecting boxes. As you are making the chart, make sure to read each clue slowly to make sure you've included all the information and not missed any.
Solve by elimination. As you read each clue, cross out the boxes that don't fit. For instance, a sentence that tells you Mr. Y sits in the first seat allows you to determine he doesn't sit in Seats B or C.
Solve by inclusion. Once you've determined that Mr. X sits in Seat A, then you can eliminate that possibility for any other person in the problem. As you can see, this really narrows down the options and helps you work toward a solution.