Riddle

I'm clean when I'm black, Dirty when white; Get too close, And you might sneeze. What am I?

Choose an answer

A.A whiteboard
B.An eraser
C.A blackboard duster
D.A Chalkboard.
Hint: It's a 2-word phrase with 11 letters, starting with "A".

Answer

A Chalkboard.

Why this is the answer

Chalk dust builds up as white residue (dirty) and the dust itself causes sneezing, while a freshly wiped black surface is 'clean.'

This riddle is filed under Color Riddles and rated Easy.

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