Answer:
Some adults still use these to count.
I'm a green veggie that looks like a tiny tree.
What is something yet nothing, but if you fill it up it will disappear?
John's father has 4 children june, july, august... What was his 4th child name
I'm the source of all emotion, but I'm caged in a white prison.
What is big and yellow and comes in the morning, to brighten mom's day?