[Answer] What year was the term that refers to the four-year period between Olympic Games first used?

Step 1 : Introduction to the question "What year was the term that refers to the four-year period between Olympic Games first used?"

...Hint :Greece

[Answer] 7. This world-famous Russian railway traverses 8 time zones in a time period of 7 days. Its main route is Moscow-Vladivostok.

Step 1 : Introduction to the question "7. This world-famous Russian railway traverses 8 time zones in a time period of 7 days. Its main route is Moscow-Vladivostok."

...1. Frontier Mail 2. Northland Express 3. Brenner Express 4. Trans-Siberian Railway This railway travels 9288 km and was built between 1891 and 1916. Its route also branches out to Mongolia and China. Russian and Mongolian tracks are broad gauge whereas Chinese tracks are metre gauge hence there is a break of gauge at the Chinese border. Each Chinese carriage has to be lifted to be changed.

[Answer] What is the gestation period of a common hippopotamus?

Step 1 : Introduction to the question "What is the gestation period of a common hippopotamus?"

...There are two hippopotamus species roaming the Earth today. The common hippopotamus usually bears young once every two years. As the time grows near for her to deliver, the mother hippo freuquently separates herself from her herd for a couple of weeks. After a gestation period lasting eight months, momma hippo usually gives birth in shallow underwater environments, although it isn't uncommon for the hippo to give birth on land. Source: Animals.Mom.me

[Answer] 5. The Great Wall of China was constructed over a period of about 2,000 years from 476 BC-221 BC to 1368-1644 and eventually measuring 5,500 miles but do you know who was the 1st foreigner to explore the whole length of this great structure?

Step 1 : Introduction to the question "5. The Great Wall of China was constructed over a period of about 2,000 years from 476 BC-221 BC to 1368-1644 and eventually measuring 5,500 miles but do you know who was the 1st foreigner to explore the whole length of this great structure?"

...1. Dr. William Edgar Geil 2. Walt Disney 3. Mao Zedong 4. J. Edgar Hoover In 1908 Dr. William Edgar Geil was the first person to traverse the Great Wall of China in 82 days. He visited China four times. In Africa he lived among pygmies and cannibals. He lectured widely in America, England and Australia and wrote 9 books about his travel experiences.

[Answer] 3. Who was leader of China during the period known as the Cultural Revolution?

Step 1 : Introduction to the question "3. Who was leader of China during the period known as the Cultural Revolution?"

...1. Mao Zedong 2. Chiang Kai-shek 3. Deng Xiaoping 4. Sun Yat-sen Following the proclamation of the People's Republic of China by Mao Zedong in 1949, Chiang Kai-shek, the Nationalist leader, retreated with his followers to the island of Formosa where they established the country of Taiwan.

[Answer] Elvis Presley's former residence in Palm Springs is called the ______, after a particular period in his life.

Step 1 : Introduction to the question " Elvis Presley's former residence in Palm Springs is called the ______, after a particular period in his life. "

...1. Elvis Retirement Resort 2. Priscilla Palm Springs Palace 3. Elvis Honeymoon Hideaway 4. Lisa Marie Nursery

[Ans] In which period was the original part of Dullatur House built?

Step 1 : Introduction to the question "In which period was the original part of Dullatur House built?"

Dullatur House is a large country mansion house, set in one acre of private gardens. Central location – by car Glasgow city centre is 15 minutes, Edinburgh is 35 minutes, mainline railway station 5 mins.