111 and 201
1, 3, and 5.
There are 17 such numbers.
450... There are 500 odd numbers from 000 to 999 inclusive. From 000 to 099, there are 50 odd numbers. 500 - 50 = 450.
Easily put any number with a single odd number 1,3,5,7,9 in a three digit number. Like 113 the 3 and 1 makes it odd number or 223 the three makes it odd.
450.
874
3897
All of them. There are roughly 45,000 5-digit odd numbers. None of them end in 0.
925 is a number divisible by 5, as its last digit is a 5. It is an odd number. Its divisors are 5, 5, and 37, also all odd numbers. It is a three-digit number.
All of those numbers are odd, except the 4. If you were referring to the number as a whole, it is odd because the last digit in the ones place is odd.
11111
Since both of those numbers contains four digits, there are no three-digit numbers between them.