1- Jewelry? ---DAMAS...though the last time I bought from them was 3 years ago: diamond set for my mother (earring, ring and necklace)

2- Grocery? -- LULU hyper (near my place) and Carrefour

3- Good food (any cuisine):
-> Chinese: Wok & Walk - they deliver too
-> American: breakfast: Ric's Kountry Kitchen
hamburgers: Fudruckers
steak: Country grill (Villagio Mall)
seafood: Al Bandar
Buffet Brunch : Intercon or Marriott
-> Filipino : Little Manila (behind Hamad Hospital/near Phil Labor Office) OR Central Cafe

4- Chocolate: any grocery stores

5- Cup of tea or coffee: Coffee Beanery / Starbucks

6- Internet cafe? they exist in Doha; most of the one's I know are here in Matar Qadeem;and since there's some areas and CAFES with free WIFi, IT'S not that popular. But there's one in City centre

7- Currency Exchange : Al Fardan (in Grand Hamad Street)

You're welcome (you did said thank you...)