QUES: Q: Who wrote "Russian language at the turn of the 20th-21st centuries"?
A: Currently the number speakers of Russian language in the world depends on the number of Russians in the world (as the main sources distribution Russian language) and total population Russia (where Russian is an official language).
Does the answer answer the question?

ANS: no

QUES: Q: The Princess Theatre, Regent Theatre, and Forum Theatre are members of which of Melbourne's theater districts?
A: The city's East End Theatre District includes theatres that similarly date from 1850s to the 1920s, including the Princess Theatre, Regent Theatre, Her Majesty's Theatre, Forum Theatre, Comedy Theatre, and the Athenaeum Theatre.
Does the answer answer the question?

ANS: yes

QUES: Q: What are common ingredients in Guinea-Bissau?
A: Common ingredients include yams, sweet potato, cassava, onion, tomato and plantain.
Does the answer answer the question?

ANS: yes

QUES: Q: Poor conditions found in developing countries may also be found in what type of nations?
A: Mass-produced clothing is often made in what are considered by some to be sweatshops, typified by long work hours, lack of benefits, and lack of worker representation.
Does the answer answer the question?

ANS:
no