1. Every year since 1947, the people of Oslo have gifted London with an awe-inspiring Christmas tree. This annual present symbolizes Norway's thankfulness to Great Britain for its support during World War II. Can you estimate the height of the tree? 20 metres (65.6 feet)

2. The world’s largest Christmas cracker was made by the parents and children of Ley Hill school in Chesham, Buckinghamshire, in 2001. Can you estimate how long it was? What do you think its diameter was? 63.1 metres long (207 feet) 4 metres in diameter (13 feet)

3. In 2012 Heston Blumenthal attempted to make the world’s largest Christmas pudding. It was around 3 metres high. A normal bag of flour weighs one kilogram. What weight of flour and raisins do you think was needed to make this Christmas pudding? 1 tonne of flour (1000 kg) 600 kg raisins

4. White Christmas by Bing Crosby is credited with being the best selling Christmas single of all time. How many copies has it sold? Over 50 million (50 000 000)