What is the ruling on distributing fruits mentioned in the Holy Quran and found in Paradise, such as figs, pomegranates, and grapes, to female students, and placing the verse on the fruit in which it was mentioned, in order to teach them that such fruits exist in Paradise?

There is no harm in asking about the fruits of Paradise mentioned in the Quran. Not all fruits mentioned in the Quran are explicitly stated to be fruits of Paradise. Pomegranates and grapes are among the fruits of Paradise, as Allah Almighty says: "In them [are] fruit and palm trees and pomegranates" (Quran 55:68), and His saying: "Indeed, for the righteous is a attainment - Gardens and grapevines" (Quran 78:31-32). As for figs, there is no text in the Quran stating that they are among the fruits of Paradise.