I can be the sum of two numbers yet still remain a mystery. What number am I if I am greater than both but less than three times their average?
Category: Brain · Difficulty: hard
Hint: Focus on properties of numbers.
Answer
A prime number greater than the sum
Explanation
A prime number that fits this criterion has unique properties: it is indivisible by any other numbers except for itself and one.
This is a hard brain riddle — a tricky one that takes a little thought. The answer is A prime number greater than the sum.
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