Which organ pumps blood throughout the human body?, Brain, Heart, Lungs, How many legs does a spider have?, 6, 8, 10, Which planet is famous for its rings?, Saturn, Mars, Jupiter, What is the fastest land animal?, Lion, Cheetah, Horse, What is the hardest natural substance on Earth?, Gold, Iron, Diamond, Which language has the most native speakers in the world?, English, Spanish, Mandarin Chinese, What is the smallest bone in the human body?, Femur, Stapes, Rib, In which year did World War II end?, 1943, 1945, 1950, What is the capital of Canada?, Toronto, Vancouver, Ottawa, Which element has the chemical symbol “Au”?, Silver, Gold, Oxygen, Which scientist developed the theory of relativity?, Isaac Newton, Albert Einstein, Galileo Galilei, Which country has the most pyramids in the world?, Egypt, Mexico, Sudan, What is the rarest blood type in the world?, O+, AB-, A+, Which organ in the human body can regenerate itself?, Heart, Liver, Kidney, How many hearts does an octopus have?, 1, 2, 3, Which desert is the largest in the world?, Sahara Desert, Arabian Desert, Antarctica, Which country invented paper?, Egypt, China, Greece, What color is a polar bear’s skin?, White, Black, Pink , How many bones are in the adult human body?, 206, 210, 180, Which planet is the hottest in our solar system?, Mercury, Venus, Mars, What is the capital of Australia?, Sydney, Melbourne, Canberra, Which animal can sleep for three years?, Bear, Snail, Snake, Which month has 28 days?, February, All months, January, What is 1 + 1 × 0?, 1, 0, 2.

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