Do the first say 30 numbers and a pattern should emerge.
The multiples of 220 (which are infinite) are all divisible by 220, including these: 220, 440, 660, 880, 1100, 1320, 1540, 1760, 1980 . . .
All numbers are divisible by 1.
Two: 1020 and 1080.
Yes; all numbers that are divisible by 9 are divisible by 3.
All of the even numbers are divisible by 2.
All the even numbers are divisible by 2.
All whole numbers are divisible. If you mean divisible by numbers other than 1 and themselves, the answer is the set of composite numbers.
Two. All numbers are also divisible by 1.
All even numbers are divisible by 2.
All numbers that are divisible by 8 and 12 would also be divisible by 4.
All numbers divisible by 3 are NOT divisible by 9. As an example, 6, which is divisible by 3, is not divisible by 9. However, all numbers divisible by 9 are also divisible by 3 because 9 is divisible by 3.
All numbers are divisible.