you can visit the oldest town in Amman which is @Downtown and visit @Amman Citadel and eat the best falafel in @Hashem Restaurant and eat kunafeh @Habiba Sweets

Where can I get my grandfather one of those long Quran stands you find in mosques?

You'll find them at the shops in @Downtown Amman.

Where can I find the oldest houses in Jordan?

@Downtown it's pretty much the oldest city in Amman, plus you can take amazing pictures of them and there are really nice views

Where can I repair my watch?

There are many shops @Downtown There's one close to AlHusseini Mosque that I've dealt with before.

Where can I find flaxseed (preferably ground)?

You'll find it in almost any spice shop @Downtown. I've also seen it @Miles and @Select Foods Shoppe

Where can I find the best fake airpods?

@Downtown

Where can I buy art supplies?

Abu Shanab @Downtown

Where can I find rare or older editions of books?

You can find lots of Arabic or English old books on the side of the roads @Downtown

Where can I find those hijabs that have the wrinkly material?

@Downtown

Where can I find a book shop for good arabic books?

There are a bunch of book kiosks in @Downtown

Where can I buy giveaways for a party at a good price?

@Downtown , Souk Nadaa! The best quality and cheapest price.

Where can I find powder hair gel?

@Downtown

Where can I buy manic panic hair dye?

@Downtown

Where can I find murals/backgrounds to take photos?

I love the ones in @Downtown

Where can I buy high quality brass knuckles?

@Downtown if you face the Husseini Mosque, go to the left and keep walking straight you will find some people selling some weapons