BrainBashers Puzzles

Puzzle IconAs a test of intelligence, BrainBashers academy sits two candidates in closed room.

The invigilator has three stickers, two white and one black.

Upon each of their foreheads he places a sticker at random, so that neither candidate can see their own sticker.

The candidate who identifies their own sticker first will be allowed entry into BrainBashers academy.

After a few minutes, one of the candidates figured he had a white sticker. How?

[Ref: ZPAX]

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