In Cairo, the kids conveniently walk into shops where the shopkeeps speak and understand English, but if you look in the backgrounds, you can see that there are in fact people wearing hijabs, and the signs are in Arabic. As mentioned by the antiques shopkeep, they're in the "Cairoglyph district" - presumably this is a more multinational district of Cairo. It also explains why the kids go to the same four shops all the time.
As silly it was for the gods of Egypt to do nothing because of a height limit, it does have some sense. Afterall: if a group of giants who embody the elements show up on the mortal realm to fight the forces of Set, they might end up making up MORE chaos than the Chaos God could do by himself.
It's possible for "Egypt" to be an answer in the geography game. It seems strange... though it also makes sense: The sign is Exports and imports. They could easily be imported goods, or just stuff being shipped domestically. We're not told where in Egypt these are going - so they could be going to places like Aswan or Alexandria.
