What did you guess? 27, 29, 38 or 43. If you guessed any of these ages you were wrong.
A family has discovered their cat is the oldest in the world after reaching its 39th birthday.
Cat Lucy was born way back in 1972 when Ted Heath was Prime Minister and petrol was 33p a gallon.
Cat experts say she has clocked up the equivalent of 172 human years and cats only live to be about 15 on average which means Lucy has more than doubled her life expectancy. Lucy was fit as a fiddle and catching mice in the garden until 2011. Lucy record was confirmed the Guinness Book of World Records . Cat Products