Easy Math Game

This is an easy math game you can play with your children at home.  You can decide on a number between 0 and 10 (then on to 20 with practice).  We made the number using counters on a ten frame but you could just write it down on a piece of paper.  Your partner has to guess the number by asking questions- I require a minimum of three.  Some of the questions we use are:
Is it odd (or even)?
Is it more than.......?
Is it less than......?

It requires your child to listen to your answers in order to figure out the number.