A Meter Reading?These brain teasers rely on your ability to recognize groups of common attributes. For each of these puzzles you'll need to figure out why the words or letters are grouped as they are. Sometimes you will be asked to pick the odd-one-out or to place a new word into the correct group.
Your task is to decide which word does not belong in the following group.
Answer'Seismometer' is the odd word out, since it is used for measuring the direction, duration, and force of earthquakes and like concussions.
The other words are all instruments used to measure speed.
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