Here's a game to play with an adult!
How do you play?
You'll need an adult to play with.
You'll also need a set of blank clock faces, or you could use the interactive version.
Set the time on the clock to 6 o'clock to start the game.
Starting with the adult, take it in turns to move the hands of the clock on by $\frac{1}{2}$ hour or 1 hour. For example, the adult could choose $\frac{1}{2}$ hour, so the clock hands move to 6.30, then you might choose 1 hour, moving the clock hands to 7.30, and so on.
The winner is the person who moves the hands exactly onto 12 o'clock.
Does it make a difference if you go first instead?
What happens if the adult gets to 10.30? Why?
Can you work out a winning strategy?