Question

I am a number between 60 and 100. My ones digit is two less than my tens digit. I am a prime number.

What number am I?

Answer 1

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You can either be 64, 75, 86, or 97. Only 97 is the one that's prime. The answer to the riddle is 97, so check if 79 is "ones digit is two less than my tens digit". hope that helped!