It's a game of cat and mouse - but can you be the winner?
This online quiz tests your ability to tell the time. A clock face shows a time, and you have to pick between two possible answers - one being held by a cat, one by a mouse!
You'll have to be quick, though - a timer shows how much time you have to get as many correct answers as you can.
Get a question right, and you score five points. Get it wrong, and you lose two.
Score high enough and you might earn a place on the world wide high score table - are you up to the challenge?