33264
3+3+2+6+4 =18
3 3 2 6 4 - 1st 2 digits the same.
3 3 2 6 4 - Fourth digit is twice the first
3 3 2 6 4 - Last digit is twice the third
A brain teaser, What 5-digit number satisfies the following requirements? 1. No zeroes 2. First two digits are the same 3. Fourth digit is twice the first 4. Last digit is twice the third 5. Sum of all digits is 18