How many?
twelve
How old is she?
five
How many ?
four
How old is he?
seven
How many?
two
How old is he?
three
How old is Mary?
One
How old is he?
nine
How many?
zero/ none
How many?
five
What number is this?
zero / oh
How many?
eight
How old are you?
Eight
How old is your brother?
two
How old is he?
six
How many?
three
How many?
nine
How many?
eleven
how many?
ten