What number is this?
fifteen
What number is this?
sixteen
What number is this?
seventeen
What number is this?
eighteen
What number is this?
twenty
What number is this?
twenty-one
What number is this?
twenty-three
What number is this?
twenty-four
What number is this?
twenty-five
What number is this?
twenty-seven
What number is this?
twenty-nine
What number is this?
thirty-one
What number is this?
thirty-two
What number is this?
thirty-three
