question: OPTIONS:
- yes
- no
However, when they ceased to pay tribute after Genghis Khan's death, his successor Ogedei Khan (r. 12291241) launched an invasion into Tibet.
Who was Genghis Khan's successor?

answer: yes

question: OPTIONS:
- yes
- no
Attacking from the "sanctuary" of Buddhist temples, they were constant headaches to any warlord and even the Emperor who tried to control their actions.
Who caused Oda Nobunaga's death?

answer: no

question: OPTIONS:
- yes
- no
Since the 1990s food has become a more important part of a pub's trade, and today most pubs serve lunches and dinners at the table in addition to (or instead of) snacks consumed at the bar.
During what decade did food become an important aspect of a pub's business?

answer: yes

question: OPTIONS:
- yes
- no
The most obvious function of clothing is to improve the comfort of the wearer, by protecting the wearer from the elements.
What obvious improvement does clothing bestow upon the wearer?

answer:
yes