Multiple choice general knowledge

Which word does not belong to this group?

  1. tree

  2. mouse

  3. paper

  4. man

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In this word classification puzzle, 'paper' is the odd one out because each of the other three words (tree, mouse, man) contains exactly one letter 'p', while 'paper' contains two letter 'p's. This is a letter-frequency based classification riddle rather than a semantic grouping.