Does this animal or object weigh more or less than 10 kg?

More than 10 kg → 16

• 

  Emperor penguin ✓ Right ✗ Wrong

  The largest of the penguins weighs between 22 and 45 kg depending on the season. The male, who incubates the egg throughout the Antarctic winter without eating, can lose almost half his weight during this long fast.

• 

  Eurasian beaver ✓ Right ✗ Wrong

  The beaver is the largest rodent in Europe: an adult usually weighs between 15 and 30 kg. Its orange teeth, strengthened with iron, let it fell trees to build its dams.

• 

  Eurasian lynx ✓ Right ✗ Wrong

  The Eurasian lynx usually weighs between 15 and 30 kg, the male being heavier than the female. It is the largest wild cat in France, found mainly in the Jura and the Vosges mountains.

• 

  English cocker spaniel ✓ Right ✗ Wrong

  The breed standard puts the English cocker spaniel at roughly 13 to 14.5 kg. This British gundog owes its name to the woodcock, which it flushed out for hunters.

• 

  Border collie ✓ Right ✗ Wrong

  This sheepdog from the border between Scotland and England usually weighs between 12 and 20 kg. It is often described as one of the most intelligent dog breeds.

• 

  Bennett's wallaby ✓ Right ✗ Wrong

  This small cousin of the kangaroo weighs about 11 to 15 kg for the female and up to 20 kg or more for the male. Wallabies that escaped from a park have lived wild in the Rambouillet forest, near Paris, since the 1970s.

• 

  Common wombat ✓ Right ✗ Wrong

  This stocky Australian marsupial weighs 20 to 35 kg. It is famous for its cube-shaped droppings, which do not roll away and which it uses to mark its territory.

• 

  English bulldog ✓ Right ✗ Wrong

  The breed standard puts the English bulldog at around 25 kg for males and 23 kg for females. Despite its small size, this stocky dog is much heavier than it looks.

• 

  Central bank gold bar ✓ Right ✗ Wrong

  The standard bar traded between central banks contains about 400 troy ounces of gold, or nearly 12.5 kg. The one-kilo bars more common among private buyers are much smaller.

• 

  Full butane gas bottle ✓ Right ✗ Wrong

  A standard French domestic butane bottle holds 13 kg of gas. Add the weight of the steel bottle itself, about 10 kg, and you are lifting more than 20 kg every time you change it.

• 

  12-litre scuba tank ✓ Right ✗ Wrong

  A 12-litre steel scuba tank already weighs about 14 to 15 kg when empty. It has to withstand a pressure of 200 bar or more, which requires thick walls.

• 

  Hollow concrete block ✓ Right ✗ Wrong

  A standard 20 × 20 × 50 cm hollow concrete block weighs about 15 to 20 kg, despite its cavities. On a building site, a bricklayer handles hundreds of them, which explains the lighter versions on sale today.

• 

  Wheel of Comté cheese ✓ Right ✗ Wrong

  A wheel of Comté weighs 32 to 45 kg. It takes about 450 litres of milk to make one, then at least four months of ageing, often much longer, before it is cut.

• 

  20-litre jerrycan of petrol ✓ Right ✗ Wrong

  A litre of petrol weighs about 750 g, so 20 litres weigh around 15 kg. Add the jerrycan itself and you are well over 10 kg. Petrol is lighter than water, but not light enough to get under the bar.

• 

  Knight's full suit of armour ✓ Right ✗ Wrong

  A 15th-century suit of plate armour usually weighs 15 to 25 kg. Spread over the whole body, it allowed a knight to run, mount a horse and even get up unaided after a fall.

• 

  Dutch bike ✓ Right ✗ Wrong

  With its steel frame, mudguards, rear rack and built-in lock, the classic Dutch bike often weighs between 18 and 25 kg. It is built to last, not to climb mountain passes.