The Quiz of knowledge

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1 How many people live in canada?
2 How many moons do we have on earth?
3 If a plane crashes on the boarder of mexico and america in the sea then were do you bury the survivors?
4 What is (4x7+5)-1x5+6?
5 What is (5x12)+7?
6 How many ribs does a human have?
7 What is feta cheese made out of?
8 What is the longest river in the world?