StrengthlessnessThese 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.
Which word does not belong?
selflessness, selfishness, strengthlessness, defenselessness
AnswerSelfishness, all the other words use only one vowel
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