A digital padlock has a 3-digit code using the digits 1, 2, and 3 only, with no repeating digits. The first digit is greater than the second digit. The third digit is odd. What is the code?
3 1 2
Digits are 1, 2, 3. The third digit is odd, so it must be 1 or 3. If third is 1, remaining are 2 and 3; first > second means 3 > 2 (code 3 2 1). If third is 3, remaining are 1 and 2; first > second means 2 > 1 (code 2 1 3). Wait, let's re-verify constraints: 'First > second, third is odd'. If code is 3 1 2, third is 2 (even). Ah, let's fix the answer to 3 2 1.
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Medium. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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