question:
Whitehead and Russell had thought originally that Principia Mathematica would take a year to complete; it ended up taking them ten years.
How long did it actually take to complete Principia Mathematica?

answer: yes

question:
Jimmy Iovine was the mentor in the tenth through twelfth seasons, former judge Randy Jackson was the mentor for the thirteenth season and Scott Borchetta was the mentor for the fourteenth and fifteenth season.
What two things did the mentors help the contestants with?

answer: no

question:
In the Middle Ages, a red flag announced that the defenders of a town or castle would fight to defend it, and a red flag hoisted by a warship meant they would show no mercy to their enemy.
What is a football player shown before being ejected from a match?

answer: no

question:
In the United States, since September 2009, high school students have been able to receive credits as Independent Study or toward Foreign Language requirements by studying Sanskrit, as part of the "SAFL:
Who coordinates the study program of Samskritam as a Foreign Language?

answer:
no