Answer:
If you need a night out, call one of these over to take the little ones off your hands for a while.
I'm the son of water but when I return to water I die. Who am I?
Though I should be unique, you've made most of us the same. I would be stronger, if my characters were stranger.
What is something you can give away as many times you want without ever losing it?
Some adults still use these to count.
How did the farmer find his wife?