Montevideo is not cheap, it's expensive for Uruguayans. For tourists is similar to prices in Europe, more expensive than the US.
yes
yes
yes it is
No , the food and the alcohol are not expensive and if you travel with the bus its not expensive
yes
pretty pricey, but it worth every penny :)
In my experience hotels are somewhat expensive, but meals, public transport and museums are very reasonable.
if you go organized in a group you can afford the vacation there,but if you go with no preparation at all you may fint it expensive.
Depends quite a lot on what currency you're bringing. Generally speaking alcohol and restaurants are expensive.
London is an expensive city to visit as a tourist so you need to be quite well off to be able to make the most of your stay.
Montevideo is a city itself so it has neighborhoods inside.
Tokyo, which is the Capital City.