I am an odd three-digit number. All of my digits are different. My first digit is one-third of my last digit, and my middle digit is the sum of the other two. What number am I?
286
Wait, 286 is even. Let's make it odd: First digit 1, last digit 3. Middle digit 1+3=4. Number is 143. Check: 1 is one-third of 3. 4 is 1+3. All digits different, number is odd.
About this riddle
Math riddles hide a calculation inside a short story. Pull out the numbers, work out what is being asked, and watch for a trick such as a unit change.
Difficulty: Medium. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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