Q&A- Simanim, Taliban & Aggadita

What is the reason for avoiding doing chesed to a non-jew? What is the Jewish position on organ donation once one passes away, and can a Jew work on cadavers as a med students?  How do we understand by the creation that the trees deviated from Hashem's commandment that they should taste like fruit?—Do trees have bechira?  With the Taliban take over, many Jews sympathize with the civilians, but isn't Sharia more in line with halacha than Western values.   2 Poskin, Rav Moshe Feinstein and Minchas Yitzchak, have different drachim in deriving sources for psakim. Why is this? What is the Jewish perspective on the ideal power-system?  How do we interpret (seemingly) physical descriptions of HaShem, especially in Yehezkel or Daniel? In the Gemara in Sukka, it describes HaShem as being 10 tefachim, and Moshe below 10. What does this mean? Can we say "everything happens for a reason" and have free will? Or can someone's decisions affect someone else's free will?  The Gemara in Sukka it describes the keruvim as being 10 tefachim over the mishkan. The keruvim min hatzad built by Shlomo were much bigger. Is there something particular that both were 1/3 of the size of their environments? A man caused, due to road-rage, by grama a car crash which killed someone. Is this man to be rebuked?  If a person reads a secular self-help book, can someone get the schar for learning Torah?  There are many cryptic messages in the agada of the midrash and gemara (eg with monsters etc). How do we interpret this? What is the significance of saying akainu seudasa?