The riddle seems absurd but is extremely reasonable when you find the right answer. The challenge is to find the answer to the question "What stands when it walks and falls when it stands?"

What do you think it is?
Leave your answer in the comments section below and check how many matches you get.
Source: https://vtcnews.vn/cai-gi-di-thi-dung-dung-thi-nga-ar971494.html
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