Hmm:

How old are you?
12
13
14
16
17
18
19
20

I forgot one thing, but what happend if I try to edit this, well:
You don't have permission to do this!

But this would be better if we can do that:
How old are you?
12
13
14
15
16
17
18
19
20

And next day put two more thing:
How old are you?
Younger then 12
12
13
14
15
16
17
18
19
20
Older then 20

Yeah, that would be nice idea, yes, I say "Yes"