Verbal - Odd Man Out

DIRECTIONS : In this oddman out section we need choose the word or pair that different from remaining words or pairs.
21. Pick the odd one out
  A.  Ink
  B.  Paper
  C.  Pen
  D.  Sharpener
22. Pick the odd one out
  A. Potassium
  B. Iodine
  C. Iron
  D. Sodium

23. Pick the odd one out
  A.  Wheat
  B.  Rice
  C.  Maize
  D.  Bajra
24. Pick the odd one out
  A.  Cucumber
  B.  Tomato
  C.  Potato
  D.  Brinjal
25. Pick the odd one out
  A.  Sunflower
  B.  Wheat
  C.  Mustard
  D.  Rose