Explanation and answer: Friday the 13th is generally known as a day of bad luck.
yes

The corresponding question: Is the following a factual statement?
"Some people feel wary of bad luck and danger on Friday the 13th."
Options:
- yes
- no
Aloe vera is often sold as a cooling gel for sunburns.
yes
Is the following sentence factually correct?
"Aloe vera plants can be used to treat sunburns."
Options:
- yes
- no
Explanation and answer: The solo moment in an opera is known as an aria, not a diary.
no

The corresponding question: Yes / no, is the following a verifiable fact?
"Many operas include a Diary, or moment when one character sings solo."
An Umpire (baseball) oversees baseball games which always have more than one team.
yes
Is the following sentence factually correct?
"An Umpire officiates more than one team."
Options:
- yes
- no
Explanation and answer: Johnny Carson had two real eyes until he died.
no

The corresponding question: "During an on air prank gone wrong, Johnny Carson lost one of his eyes."
Is the above claim true?
Options:
- yes
- no
Explanation and answer: Argon is not particularly deadly, and was not used as a weapon in any wars.
no

The corresponding question:
Is the following sentence factually correct?
"Argon acted as a chemical weapon in the cold war."
Options:
- yes
- no