Science Riddles

I flow from top to bottom I take the shape of the container I am in take care not to spill me though I cannot be poured back
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Doctor Harish and a bus driver Manish are both in love with the same woman named priyanka.
The bus driver need to go for a long trip of 10 days. Before he left he gave priyanka 10 apples. Why?
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I give you a group of three. One is sitting down, and will never get up. The second eats as much as is given to him, yet is always hungry. The third goes away and never returns.
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What planet has the shortest year?
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What kind of animal lives longest in zoos?
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Which fish are the oldest kind of fish?
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Which measurement is equal to the total amount of time your eyes stay closed during the day just from blinking?
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Why does popcorn pop?
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What always happens during a thunderstorm?
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What constantly wears away the Earth and changes its landscape?See the solution