I don't know the name of the fruit in English and hence I'm attaching the figure if it.
I don't know the exact name of the vegetable. But I'm guessing the following names: sponge gourd, luffa cylindrica, luffa.
What is the exact name of the fruit?
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Going by your guesses, I found the following names on Wikipedia (all for the same plant): sponge gourd, Egyptian cucumber, Vietnamese luffa, dishrag gourd, rag gourd, vegetable-sponge or smooth luffa. Its Latin names are Cucurbita luffa, Luffa cylindrica, Luffa aegyptica, Luffa aegyptiaca, Luffa pentandra, Momordica cylindrica. or Momordica luffa.
I am not completely sure if the plant in the photo is the plant on the Wikipedia page. However, the Wiki has a translations in many different languages, so perhaps you can look for one in a language in which you know the plant's name?