Why does God destroy Sodom and Gomorrah without warning, but offer Nineveh a chance to repent? The men who come to Lot's house could have just easily prophesied to the people of Sodom and Gomorrah ...
Why does it rain both fire and brimstone (gafris - 19:24) on Sodom surely one or the other was enough? Furthermore, if the whole city is 'turned upside down' (19:25) why was there a need to rain ...
Rashi says that avraham sent yishmael out with only water but no money because he hated him for going out "tarbut raah". yet later on, the verse says G-d heard the cry of Yishmael dying of thirst ...