[Answer] How many UNESCO World Heritage sites are there?

Step 1 : Introduction to the question "How many UNESCO World Heritage sites are there?"

...1. 458 2. 890 3. 1,121 4. 2,213

[Answer] There are approximately 35 UNESCO World Heritage Sites in India. Which of the following is NOT a UNESCO World Heritage Site?

Step 1 : Introduction to the question "There are approximately 35 UNESCO World Heritage Sites in India. Which of the following is NOT a UNESCO World Heritage Site?"

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[Answer] Which city has the highest number of UNESCO World Heritage Sites?

Step 1 : Introduction to the question "Which city has the highest number of UNESCO World Heritage Sites?"

...1. Rome, Italy 2. Athens, Greece 3. London, UK 4. Cordoba, Spain

[Answer] 3. Which of these internet sites allow users to stream and share videos?

Step 1 : Introduction to the question "3. Which of these internet sites allow users to stream and share videos?"

...1. ESPN 2. Outlook 3. YouTube 4. Wiki YouTube was created by Steve Chen, Chad Hurley, Jawed Karim in 2005. Its headquarters are located in San Bruno, California.