Yes / no, is the following a verifiable fact?
"Blonds make less money than people with dark or red hair."
no
A survey of 400 waitresses in Australia showed that blonds made 7% more than their dark or red haired counterparts.


**Q**
Yes / no, is the following a verifiable fact?
"SpaceX first launch of Falcon 9 was unsuccessful in May 2012."
**A**
no
The rocket launch was a success and was the first commercial spacecraft to board the ISS.


Is the following sentence factually correct?
"On Delta Air Lines one can fly first-class."
Options:
- yes
- no
yes
For superior service, one can choose Delta Air Lines First Class option.


**Q**
"Angela Merkel is the current Führer of Germany."
Is the above claim true?
Options:
- yes
- no
**A**
yes
Führer is a title that means "leader" in German.


Claim: "Attack on Pearl Harbor happened on December 1941."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
yes
On December 1941 Pearl Harbor was indeed attacked.


Is the following sentence factually correct?
"Adrenaline kicks the heart rate up during stressful situations."
Options:
- yes
- no
yes
Adrenaline is a hormone that secretes from the adrenal gland during stressful situations.