[Answer] 10. I live in temperate oceans of the world and am a grey coloured fish with a white underbelly. I don't have any bones, but I can have up to 3,000 teeth. What am I?

Step 1 : Introduction to the question "10. I live in temperate oceans of the world and am a grey coloured fish with a white underbelly. I don't have any bones, but I can have up to 3,000 teeth. What am I?"

...1. Great White Shark 2. Kowari 3. Sawfish 4. Southern Right Whale Found in Australian waters and the waters of Africa, America, China, Japan, New Zealand and Russia, I am a fast swimming 'mackerel shark'. I give birth to live young, called pups. My average size is over 5 m and I hunt my prey using my ability to sense electrical charges in the water.

[Answer] How many oceans are there?

Step 1 : Introduction to the question "How many oceans are there?"

...1. 4 2. 5 3. 6 4. 7

[Answer] 9. Which Central American country is home to one of the world's greatest engineering feats, connecting the Atlantic and Pacific Oceans?

Step 1 : Introduction to the question "9. Which Central American country is home to one of the world's greatest engineering feats, connecting the Atlantic and Pacific Oceans?"

...1. Guatemala 2. El Salvador 3. Nicaragua 4. Panama Panama is in Central America, bordered by the North Pacific Ocean and Caribbean Sea, neighbor to Colombia and Costa Rica. Of course, it is best known for the Panama Canal, but there are also rain forests to visit and hike in, bird watching, whale watching, surfing, and deep sea and spear fishing. There are accommodations of all kinds, upscale to economical, and plenty of great beaches. Special Attraction: Panama Canal and History Museum

[Answer] Which is the smallest of the world's five oceans?

Step 1 : Introduction to the question "Which is the smallest of the world's five oceans?"

...The Arctic Ocean is that body of water between North America, Europe and Asia. Of the world's five oceans, it is the smallest. Most of the Arctic Ocean is north of the Arctic Circle. There are six countries that border on the Arctic Ocean: Russia, Norway, Iceland, United States, Denmark and Canada (including Greenland.) Two seasonal waterways through the Arctic Ocean are important for shipping and military traffic. These are the Northwest Passage, important to the U.S. and Canada, and the Norther Sea Route, heavily used by Norway and Russia. Source: CIA.gov

[Ans] What is the deepest known point in the Earth's oceans?

Step 1 : Introduction to the question "What is the deepest known point in the Earth's oceans?"

...Where is the world's deepest point? The Mariana Trench or Marianas Trench is the deepest part of the world's oceans. It is located in the western Pacific Ocean, an average of 200 kilometres (124 mi) to the east of the Mariana Islands, in the Western Pacific East of Philippines. Mariana Trench - Wikipedia

 Which is the deepest ocean in the world? Deepest Oceans & Seas Pacific Ocean (35,837 ft) (10,924 meters) Atlantic Ocean (30,246 ft) (9,219 meters) Indian Ocean (24,460 ft) (7,455 meters) Southern Ocean (23,737 ft) (7,236 meters) Caribbean Sea (22,788 ft) (6,946 meters) Arctic Ocean (18,456 ft) (5,625 meters) South China Sea (16,456 ft) (5,016 meters)