104
No. (Assuming a three digit number is in the range 100-999 and excludes leading zeros, that is 080 does not count as it is really 80 which is a two digit number) To be divisible by 11, the difference in the sums of the alternate digits of the number must be divisible by 11 (or 0). For a three digit number, this means that the sum of the first and last digits less the second digit must be a multiple of 11 (or 0). For a three digit number with all the digits the same, this calculation results in the value of one of the digits (eg 333 → 3 + 3 - 3 = 3) which will not be 0, and cannot be a multiple of 11 as a single digit is less than or equal to 9 which is less than 11 and thus not a multiple of 11.
The smallest three digit number is 0.01. One less than that would be -1.01.
54
54
27
194.There were actually two options, 194 and 083, but as it needs to be a three digit number, 194 is more fitting.
12
41
three answers: 6849 or 4637 or 2425
182
707 ?
390 480 570