Various updates to geography trivia (#5638)

* Various updates to geography trivia

* Remove discriminator from AUTHOR key

redbot/cogs/trivia/data/lists/geography.yaml

@@ -1,4 +1,4 @@
-AUTHOR: Kreusada#0518
+AUTHOR: Kreusada
 What is Earth's largest continent?:
 - Asia
 What country accounts for more than half of the western coastline of South America?:
@@ -79,7 +79,9 @@ What ocean is home to 75% of the Earth's volcanoes?:
 - Pacific 
 - Pacific Ocean
 What is the largest city in the world based on surface area?:
-- Sermersooq
+- New York
+- New York City
+- NYC
 What is the only major city located on two continents?:
 - Istanbul
 What is the coldest sea on Earth?:
@@ -127,8 +129,6 @@ What is the smallest country in South America?:
 - Suriname
 What is the capital of Nigeria?:
 - Abuja
-Which country is NOT part of the Scaninavian Peninsula?:
-- Denmark
 What is the capital of Turkey?:
 - Ankara
 Lake Titicaca sits on the border between what two nations?:
@@ -151,13 +151,12 @@ What country borders the Caspian Sea, Persian Gulf, and Gulf of Oman?:
 Which U.S. state has the most miles of rivers?:
 - Alaska
 What is the capital of Costa Rica?:
+- San José
 - San Jose
 What is the earliest known walled city?:
 - Jericho
 What is the oldest city in India?:
 - Varanasi
-Which U.S. state has the largest aquifer?:
-- Nebraska
 What is the primary mountain range in Iran?:
 - Zagros 
 - Zagros Mountains
@@ -199,7 +198,8 @@ What is the largest UK city without a professional football team?:
 Which European city had the most tourists in 2019?:
 - London
 With the highest cost of living, which city is currently the most expensive in the world?:
-- Singapore
+- Tel Aviv
+- Tel-Aviv
 What is the only city in the United Kingdom to begin with the letter R?:
 - Ripon
 What is the biggest city in Africa by population?:
@@ -209,4 +209,4 @@ In which city would you find Leonardo Da Vinci's Mona Lisa?:
 What is the world's northernmost capital city?:
 - Reykjavik
 How many underground tube stations are there in London?:
-- 270
+- 272