[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] Which of the following is the name of a world-famous Korean pop band?

Step 1 : Introduction to the question "Which of the following is the name of a world-famous Korean pop band?"

...BTS is a seven-member South Korean boy band formed in Seoul in 2013. Known for their global social influence, BTS hold the Guinness World Record for most Twitter engagements and were the most-tweeted celebrities in 2017 and 2018, winning Top Social Artist three years in a row at the Billboard Music Awards. Time magazine named the band one of Time 100's most influential people of 2019. The band is worth more than $3.6 billion to South Korea's economy each year, attracting one in every 13 foreign tourists that visit the country.

[Ans] Which of the following is the name of a world-famous Korean pop band?

Step 1 : Introduction to the question "Which of the following is the name of a world-famous Korean pop band?"

BTS is a seven-member South Korean boy band formed in Seoul in 2013. Known for their global social influence, BTS hold the Guinness World Record for most Twitter engagements and were the most-tweeted celebrities in 2017 and 2018, winning Top Social Artist three years in a row at the Billboard Music Awards. Time magazine named the band one of Time 100's most influential people of 2019. The band is worth more than $3.6 billion to South Korea's economy each year, attracting one in every 13 foreign tourists that visit the country.

[Answer] For a spring break that is equal parts work and play, you could participate in world-famous Sailing Week in Antigua. Sail by day, party by night during this five-day event. Where does our guide suggest you go to party?

Step 1 : Introduction to the question " For a spring break that is equal parts work and play, you could participate in world-famous Sailing Week in Antigua. Sail by day, party by night during this five-day event. Where does our guide suggest you go to party? "

...1. Jolly Harbour or English Bay 2. Five Islands and Shallow Bay Beach 3. Devil's Bridge or Angel's Cove 4. Jabberwock Beach or Alice Isle