We got the stuff below from the store this afternoon. I'm hoping you recognize the apples. As for the other stuff, well... part of the reason we bought them is we also had no idea what they were. The green leafy things are probably bok choy. The red spiky things are rambutan. Need more info?
Here is what we learned through arduous investigation of the matter. The spikes are soft. You cut the skin with a knife and try not to cut the center fruit which is not so hard because the skin can sort of be popped open once it is partially cut. The pulp/fuity part is similar to a peeled grape with a more sturdy texture. (It also reminded us of the alien food near the beginning of Enemy Mine). You can pop of the fruit in your mouth and chew on it and then spit out the seed. It sort of tastes like a gummy fruit. Cara had 4 of them, Michael was done after one.