Three people are wearing red, blue, and green hats. Each can see the others' hats but not their own. They know at least one hat is red. If the person wearing the blue hat sees two red hats, what color is their hat?
Category: Brain · Difficulty: hard
Hint: Consider what each person can deduce from what they see.
Answer
The blue hat is blue.
Explanation
The person in the blue hat knows their hat must be blue since they see two red ones.
This is a hard brain riddle — a tricky one that takes a little thought. The answer is The blue hat is blue..
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