One of the two fruits would be the apple. Apart from being debated to be the fruit of the tree of knowledge you can find it in Greek mythology (the golden apples of the Hesperides which Hercules has to get, the golden apple of discord which ultimately sets of the Trojan war), as well as in more recent mythology from central Europe (the one that Guillaume Tell shots from his son's head (a motif that can also be found in the likely older song of Wieland the Smith whose brother has to do the exact same thing), the poisoned apple that Snow White eats). I'm pretty sure that apples are mentioned on more ocassions.
I am harder pressed for the other fruit. I know that figs are another fruit thought of as the fruit from the tree of knowledge (with their leaves being considered particularly suited to hide certain parts of the human body
), but I admit that I now will have to check out about its other mythological contexts so what follows know I looked up...
...aparently Buddha's bodhi tree is supposed to have been a fig tree. Muhammad apparently stated: "If I had to mention a fruit that descended from paradise, I would say this is it because the paradisiacal fruits do not have pits...eat from these fruits for they prevent hemorrhoids, prevent piles and help gout." In Greek mythology, the god Apollo sends a crow to collect water from a stream for him. The crow sees a fig tree and waits for the figs to ripen, tempted by the fruit. He knows that he is late and that his tardiness will be punished, so he gets a snake from the stream and collects the water. He presents Apollo with the water and uses the snake as an excuse. Apollo sees through the crow's lie and throws the crow, goblet, and snake into the sky where they form the constellations Hydra, Crater, and Corvus.
